269 lines
12 KiB
JSON
269 lines
12 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-2026-76844",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-08-19T20:34:19.724Z",
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"datePublished": "2026-08-24T13:12:01.148Z",
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"dateUpdated": "2026-11-13T14:15:54.676Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"shortName": "VulnCheck",
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"dateUpdated": "2026-11-13T14:15:54.676Z"
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},
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"datePublic": "2026-08-20T00:00:00.000Z",
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"title": "webpack-dev-middleware before 7.4.6 and 8.3.0 Path Traversal via Non-Slash-Terminated publicPath",
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"descriptions": [
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{
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"lang": "en",
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"value": "webpack-dev-middleware 5.3.4, 6.1.2 through 6.1.3, 7.1.0 before 7.4.6, and 8.0.0 before 8.3.0 contains a path traversal vulnerability in getFilenameFromUrl that bypasses the fix for CVE-2024-29180: a publicPath without a trailing slash is matched by string prefix, and the '..' guard runs before that prefix is stripped. Unauthenticated attackers can request a path such as /assets../secret to read files one directory above the output directory when the middleware serves from the physical filesystem through writeToDisk or a custom outputFileSystem."
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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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"lang": "en",
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"cweId": "CWE-22",
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"description": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
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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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"affected": [
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{
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"vendor": "webpack",
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"product": "webpack-dev-middleware",
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"collectionURL": "https://www.npmjs.com/package/webpack-dev-middleware",
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"packageName": "webpack-dev-middleware",
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"packageURL": "pkg:npm/webpack-dev-middleware",
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"defaultStatus": "unaffected",
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"versions": [
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{
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"version": "5.3.4",
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"status": "affected",
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"versionType": "semver",
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"lessThanOrEqual": "5.3.4"
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},
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{
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"version": "6.1.2",
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"status": "affected",
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"versionType": "semver",
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"lessThanOrEqual": "6.1.3"
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},
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{
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"version": "7.1.0",
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"status": "affected",
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"versionType": "semver",
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"lessThan": "7.4.6"
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},
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{
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"version": "7.4.6",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "8.0.0",
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"status": "affected",
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"versionType": "semver",
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"lessThan": "8.3.0"
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},
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{
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"version": "8.3.0",
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"status": "unaffected",
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"versionType": "semver"
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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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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.3.4",
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"versionEndIncluding": "5.3.4"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.1.2",
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"versionEndIncluding": "6.1.3"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "7.1.0",
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"versionEndExcluding": "7.4.6"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "8.0.0",
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"versionEndExcluding": "8.3.0"
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}
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]
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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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"format": "CVSS",
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"cvssV4_0": {
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"version": "4.0",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N",
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"baseScore": 8.3,
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"baseSeverity": "HIGH",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "PASSIVE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "HIGH",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE"
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}
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},
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{
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"format": "CVSS",
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N",
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"baseScore": 7.4,
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"baseSeverity": "HIGH",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "REQUIRED",
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"scope": "CHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "NONE",
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"availabilityImpact": "NONE"
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}
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}
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],
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"references": [
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{
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"url": "https://github.com/webpack/webpack-dev-middleware",
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"tags": [
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"product"
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]
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},
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{
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"url": "https://github.com/webpack/webpack-dev-middleware/security/advisories/GHSA-g84c-rxfj-3j2c",
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"name": "GitHub Security Advisory (GHSA-g84c-rxfj-3j2c)",
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"tags": [
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"vendor-advisory"
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]
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},
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{
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"url": "https://github.com/webpack/webpack-dev-middleware/commit/13344e78b26d88fe9b7c8381a3860e248a52359b",
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"name": "Patch Commit",
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"tags": [
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"patch"
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]
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},
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{
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"url": "https://github.com/webpack/webpack-dev-middleware/commit/cefccbac330c29052fc6dffe85fd292ea2ac782b",
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"name": "Patch Commit",
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"tags": [
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"patch"
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]
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},
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{
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"url": "https://github.com/webpack/webpack-dev-middleware/releases/tag/v8.3.0",
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"name": "Release Notes",
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"tags": [
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"release-notes"
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]
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},
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{
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"url": "https://github.com/webpack/webpack-dev-middleware/releases/tag/v7.4.6",
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"name": "Release Notes",
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"tags": [
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"release-notes"
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]
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},
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{
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"url": "https://github.com/webpack/webpack-dev-middleware/blob/v8.1.1/src/middleware.js",
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"tags": [
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"technical-description"
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]
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},
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{
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"url": "https://github.com/advisories/GHSA-wr3j-pwj9-hqq6",
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"tags": [
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"related"
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]
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},
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{
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"name": "VulnCheck Advisory: webpack-dev-middleware Path Traversal via Offset Slice on a Non-Slash-Terminated publicPath",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/webpack-dev-middleware-path-traversal-via-offset-slice-on-a-non-slash-terminated-publicpath"
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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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"value": "Muhammad Sobirov",
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"type": "finder"
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}
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],
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"x_generator": {
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"engine": "vulncheck-endgame"
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}
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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": "2026-08-26T18:22:33.313523Z",
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"id": "CVE-2026-76844",
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"options": [
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{
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"Exploitation": "poc"
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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": "2026-08-26T18:22:44.932Z"
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}
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}
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]
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}
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} |