384 lines
17 KiB
JSON
384 lines
17 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-47078",
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"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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"state": "PUBLISHED",
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"assignerShortName": "EEF",
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"dateReserved": "2026-05-18T17:28:10.319Z",
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"datePublished": "2026-07-27T15:03:50.929Z",
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"dateUpdated": "2026-09-24T20:48:37.203Z"
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},
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"containers": {
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{
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],
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"modules": [
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"zip"
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],
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"lib/stdlib/src/zip.erl"
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],
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{
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"name": "zip:unzip/1"
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{
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"name": "zip:extract/1"
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},
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{
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"name": "zip:extract/2"
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},
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{
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"name": "zip:check_dir_level/2"
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{
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"changes": [
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{
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"at": "27.3.4.15",
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},
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{
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"at": "28.5.0.4",
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"status": "unaffected"
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},
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{
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"at": "29.0.4",
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"status": "unaffected"
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}
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],
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"lessThan": "*",
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"status": "affected",
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"version": "27.1",
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"versionType": "otp"
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}
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]
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},
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{
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],
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"defaultStatus": "unaffected",
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"modules": [
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],
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"packageName": "stdlib",
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"packageURL": "pkg:otp/stdlib?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%2Bhttps:%2F%2Fgithub.com%2Ferlang%2Fotp.git",
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"product": "OTP",
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"programFiles": [
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"src/zip.erl"
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],
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"programRoutines": [
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{
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"name": "zip:unzip/1"
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},
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{
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"name": "zip:unzip/2"
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},
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{
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"name": "zip:extract/1"
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},
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{
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"name": "zip:extract/2"
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},
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{
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"name": "zip:check_dir_level/2"
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}
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],
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"repo": "https://github.com/erlang/otp",
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"vendor": "Erlang",
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"versions": [
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{
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"changes": [
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{
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"at": "6.2.2.4",
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"status": "unaffected"
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},
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{
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"at": "7.3.0.1",
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"status": "unaffected"
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},
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{
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"at": "8.0.3",
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"status": "unaffected"
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}
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],
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"lessThan": "*",
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"status": "affected",
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"version": "6.1",
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"versionType": "otp"
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}
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]
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},
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{
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"collectionURL": "https://github.com",
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"cpes": [
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"cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"zip"
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],
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"packageName": "erlang/otp",
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"packageURL": "pkg:github/erlang/otp",
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"product": "OTP",
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"programFiles": [
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"lib/stdlib/src/zip.erl"
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],
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"programRoutines": [
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{
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"name": "zip:unzip/1"
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},
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{
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"name": "zip:unzip/2"
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},
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{
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"name": "zip:extract/1"
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},
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{
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"name": "zip:extract/2"
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},
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{
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"name": "zip:check_dir_level/2"
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}
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],
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"repo": "https://github.com/erlang/otp",
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"vendor": "Erlang",
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"versions": [
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{
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"lessThan": "8a933c9c7835b06776d31d17b79b7336627d887a",
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"status": "affected",
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"version": "8d537f51a4262d24f3395c4148323eaca9facbbd",
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"versionType": "git"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"cpeMatch": [
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{
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"criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "27.3.4.15",
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"versionStartIncluding": "27.1",
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"vulnerable": true
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},
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{
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"criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "28.5.0.4",
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"versionStartIncluding": "28.0",
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"vulnerable": true
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},
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{
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"criteria": "cpe:2.3:a:erlang:erlang\\/otp:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "29.0.4",
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"versionStartIncluding": "29.0",
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"vulnerable": true
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}
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],
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"negate": false,
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"operator": "OR"
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}
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],
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"operator": "AND"
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"value": "Jonatan Männchen / EEF"
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},
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{
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"lang": "en",
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"type": "finder",
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"value": "Zhang Delong"
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},
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{
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"lang": "en",
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"type": "remediation developer",
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"value": "John Högberg"
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}
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],
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"datePublic": "2026-07-27T15:03:50.000Z",
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "<p>Relative Path Traversal vulnerability in Erlang OTP (stdlib zip module) allows writing files outside the intended extraction directory via a crafted zip archive.</p>\n<p><code>zip:unzip/1,2</code> and <code>zip:extract/1,2</code> validate entry paths using <code>zip:check_dir_level/2</code>, which tracks directory depth as a running integer counter: <code>..</code> decrements it, normal path components increment it. The caller rejects only paths where the final counter value is less than zero. A path such as <code>../x/y</code> causes the counter to go negative mid-traversal then recover to zero, passing validation while resolving to a location outside the extraction directory when joined with the current working directory via <code>add_cwd</code>.</p>\n<p>This vulnerability is associated with program file <code>lib/stdlib/src/zip.erl</code>.</p>\n<p>This issue affects OTP from OTP 27.1 before OTP 27.3.4.15, OTP 28.5.0.4, and OTP 29.0.4, corresponding to stdlib from 6.1 before 6.2.2.4, 7.3.0.1, and 8.0.3.</p>"
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},
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{
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"base64": false,
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"type": "text/markdown",
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"value": "Relative Path Traversal vulnerability in Erlang OTP (stdlib zip module) allows writing files outside the intended extraction directory via a crafted zip archive.\n\n`zip:unzip/1,2` and `zip:extract/1,2` validate entry paths using `zip:check_dir_level/2`, which tracks directory depth as a running integer counter: `..` decrements it, normal path components increment it. The caller rejects only paths where the final counter value is less than zero. A path such as `../x/y` causes the counter to go negative mid-traversal then recover to zero, passing validation while resolving to a location outside the extraction directory when joined with the current working directory via `add_cwd`.\n\nThis vulnerability is associated with program file `lib/stdlib/src/zip.erl`.\n\nThis issue affects OTP from OTP 27.1 before OTP 27.3.4.15, OTP 28.5.0.4, and OTP 29.0.4, corresponding to stdlib from 6.1 before 6.2.2.4, 7.3.0.1, and 8.0.3."
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}
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],
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"value": "Relative Path Traversal vulnerability in Erlang OTP (stdlib zip module) allows writing files outside the intended extraction directory via a crafted zip archive.\n\nzip:unzip/1,2 and zip:extract/1,2 validate entry paths using zip:check_dir_level/2, which tracks directory depth as a running integer counter: .. decrements it, normal path components increment it. The caller rejects only paths where the final counter value is less than zero. A path such as ../x/y causes the counter to go negative mid-traversal then recover to zero, passing validation while resolving to a location outside the extraction directory when joined with the current working directory via add_cwd.\n\nThis vulnerability is associated with program file lib/stdlib/src/zip.erl.\n\nThis issue affects OTP from OTP 27.1 before OTP 27.3.4.15, OTP 28.5.0.4, and OTP 29.0.4, corresponding to stdlib from 6.1 before 6.2.2.4, 7.3.0.1, and 8.0.3."
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-139",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-139 Relative Path Traversal"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"attackVector": "LOCAL",
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"baseScore": 4.8,
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"baseSeverity": "MEDIUM",
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"privilegesRequired": "NONE",
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"providerUrgency": "NOT_DEFINED",
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"subAvailabilityImpact": "LOW",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "LOW",
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"userInteraction": "PASSIVE",
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"valueDensity": "NOT_DEFINED",
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"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L",
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"version": "4.0",
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"vulnAvailabilityImpact": "LOW",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "LOW",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-23",
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"description": "CWE-23 Relative Path Traversal",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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"shortName": "EEF",
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"dateUpdated": "2026-09-24T20:48:37.203Z"
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},
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"references": [
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{
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"tags": [
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"vendor-advisory",
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"related"
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],
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"url": "https://github.com/erlang/otp/security/advisories/GHSA-rf72-wp7h-jg3x"
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},
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{
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"name": "EEF CNA record for CVE-2026-47078",
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"tags": [
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"related"
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],
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"url": "https://cna.erlef.org/cves/CVE-2026-47078.html"
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},
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{
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"name": "OSV record EEF-CVE-2026-47078",
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"tags": [
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"related"
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],
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"url": "https://osv.dev/vulnerability/EEF-CVE-2026-47078"
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},
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{
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"name": "Erlang/OTP version ordering",
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"tags": [
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"x_version-scheme"
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],
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"url": "https://www.erlang.org/doc/system/versions.html#order-of-versions"
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},
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{
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"name": "Introducing commit 8d537f5 in erlang/otp",
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"tags": [
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"related"
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],
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"url": "https://github.com/erlang/otp/commit/8d537f51a4262d24f3395c4148323eaca9facbbd"
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},
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{
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"name": "Fix commit 8a933c9 in erlang/otp",
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"tags": [
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"patch"
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],
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"url": "https://github.com/erlang/otp/commit/8a933c9c7835b06776d31d17b79b7336627d887a"
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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},
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"title": "Relative path traversal in zip:unzip/zip:extract via check_dir_level depth-counter bypass"
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-07-27T18:38:46.508080Z",
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"id": "CVE-2026-47078",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-07-27T18:38:54.420Z"
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||
}
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||
}
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||
]
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||
}
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} |