262 lines
11 KiB
JSON
262 lines
11 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-2026-47067",
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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": "2026-05-18T17:28:08.321Z",
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"datePublished": "2026-05-25T14:00:48.507Z",
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"dateUpdated": "2026-05-27T15:41:27.821Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"collectionURL": "https://repo.hex.pm",
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"cpes": [
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"cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"hackney_url"
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],
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"packageName": "hackney",
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"packageURL": "pkg:hex/hackney",
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"product": "hackney",
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"programFiles": [
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"src/hackney_url.erl"
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],
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"programRoutines": [
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{
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"name": "hackney_url:parse_url/1"
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}
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],
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"repo": "https://github.com/benoitc/hackney",
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"vendor": "benoitc",
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"versions": [
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{
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"lessThan": "4.0.1",
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"status": "affected",
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"version": "2.0.0",
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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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"collectionURL": "https://github.com",
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"cpes": [
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"cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"hackney_url"
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],
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"packageName": "benoitc/hackney",
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"packageURL": "pkg:github/benoitc/hackney",
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"product": "hackney",
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"programFiles": [
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"src/hackney_url.erl"
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],
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"programRoutines": [
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{
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"name": "hackney_url:parse_url/1"
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}
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],
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"repo": "https://github.com/benoitc/hackney",
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"vendor": "benoitc",
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"versions": [
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{
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"lessThan": "31f6f0e27e096ad88743dfded4f030a3ee74972e",
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"status": "affected",
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"version": "d9713695c0d99855d12c73fd8a0b4be0543950c4",
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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:benoitc:hackney:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "4.0.1",
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"versionStartIncluding": "2.0.0",
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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": "AND"
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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": "Peter Ullrich"
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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": "Benoit Chesneau"
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},
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{
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"lang": "en",
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"type": "analyst",
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"value": "Jonatan Männchen / EEF"
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}
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],
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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": "Allocation of Resources Without Limits or Throttling vulnerability in benoitc hackney allows Flooding.<p>The URL parser in <tt>src/hackney_url.erl</tt> converts every unrecognized URL scheme to a permanent BEAM atom via <tt>binary_to_atom/2</tt>. BEAM atoms are never garbage-collected and the atom table defaults to a hard limit of 1,048,576 entries. An attacker who can supply URLs with attacker-chosen scheme prefixes — directly as request targets, as configured webhook URLs, or via <tt>Location</tt> headers followed during redirects — can exhaust the atom table and crash the entire BEAM VM with <tt>system_limit</tt>.</p><p>This issue affects hackney: from 2.0.0 before 4.0.1.</p>"
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}
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],
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"value": "Allocation of Resources Without Limits or Throttling vulnerability in benoitc hackney allows Flooding. The URL parser in src/hackney_url.erl converts every unrecognized URL scheme to a permanent BEAM atom via binary_to_atom/2. BEAM atoms are never garbage-collected and the atom table defaults to a hard limit of 1,048,576 entries. An attacker who can supply URLs with attacker-chosen scheme prefixes — directly as request targets, as configured webhook URLs, or via Location headers followed during redirects — can exhaust the atom table and crash the entire BEAM VM with system_limit.\n\nThis issue affects hackney: from 2.0.0 before 4.0.1."
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-125",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-125 Flooding"
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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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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"attackVector": "NETWORK",
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"baseScore": 8.7,
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"baseSeverity": "HIGH",
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"privilegesRequired": "NONE",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "NONE",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
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"version": "4.0",
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"vulnAvailabilityImpact": "HIGH",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE"
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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-770",
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"description": "CWE-770 Allocation of Resources Without Limits or Throttling",
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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": "2026-05-27T15:41:27.821Z"
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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/benoitc/hackney/security/advisories/GHSA-9653-rcfr-5c62"
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},
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{
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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-2026-47067.html"
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},
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{
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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-2026-47067"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/benoitc/hackney/commit/31f6f0e27e096ad88743dfded4f030a3ee74972e"
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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": "Atom table exhaustion via unrecognized URL schemes in hackney",
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"x_generator": {
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"engine": "cvelib 1.8.0"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/benoitc/hackney/security/advisories/GHSA-9653-rcfr-5c62",
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"tags": [
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"exploit"
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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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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-05-26T15:45:32.232194Z",
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"id": "CVE-2026-47067",
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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": "yes"
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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": "2026-05-26T15:45:36.464Z"
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}
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}
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]
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}
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} |