CVE-2026-76844 (GCVE-0-2026-76844)
Vulnerability from cvelistv5 – Published: 2026-08-24 13:12 – Updated: 2026-08-26 18:22
VLAI
EPSS
VEX
Title
webpack-dev-middleware Path Traversal via Offset Slice on a Non-Slash-Terminated publicPath
Summary
webpack-dev-middleware resolves a request to a local file in getFilenameFromUrl by testing the request pathname against a traversal guard and then slicing it at a fixed character offset. The guard, UP_PATH_REGEXP applied to path.normalize(`./${pathname}`), only matches ".." that stands as a whole path segment, while the containment test is the string comparison pathname.startsWith(publicPathPathname) and the file path is built as path.join(outputPath, pathname.slice(publicPathPathname.length)). When the configured publicPath has no trailing slash, a request such as GET /assets../.env against publicPath /assets yields the pathname /assets../.env, whose only dot-dot sits inside the segment "assets.." and so passes the guard, but the offset slice cuts within that segment and hands "../.env" to path.join, resolving one directory above outputPath. Reading a file from that path requires the middleware to be backed by the physical filesystem, which happens when writeToDisk is true or a custom outputFileSystem is supplied, since the default memfs volume holds only build output. Traversal depth is limited to a single directory because a separately delimited dot-dot segment is collapsed during URL parsing before the guard runs. The default publicPath value of "auto" resolves to "/" and is not affected. This is an incomplete fix for CVE-2024-29180: the guard and offset slice were introduced by that fix and are present in every release from 5.3.4, 6.1.2 and 7.1.0 onward.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 18:22 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/webpack/webpack-dev-middleware | product |
| https://github.com/webpack/webpack-dev-middleware… | technical-description |
| https://github.com/advisories/GHSA-wr3j-pwj9-hqq6 | related |
| https://www.vulncheck.com/advisories/webpack-dev-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| webpack | webpack-dev-middleware |
Affected:
5.3.4 , ≤ 5.3.4
(semver)
Affected: 6.1.2 , ≤ 6.1.3 (semver) Affected: 7.1.0 , ≤ 7.4.5 (semver) Affected: 8.0.0 , ≤ 8.1.1 (semver) cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:* cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:* cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:* cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:* |
Date Public
2026-08-20 00:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-76844",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-08-26T18:22:33.313523Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-08-26T18:22:44.932Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://www.npmjs.com/package/webpack-dev-middleware",
"defaultStatus": "unaffected",
"packageName": "webpack-dev-middleware",
"packageURL": "pkg:npm/webpack-dev-middleware",
"product": "webpack-dev-middleware",
"vendor": "webpack",
"versions": [
{
"lessThanOrEqual": "5.3.4",
"status": "affected",
"version": "5.3.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.3",
"status": "affected",
"version": "6.1.2",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.4.5",
"status": "affected",
"version": "7.1.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.1.1",
"status": "affected",
"version": "8.0.0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:*",
"versionEndIncluding": "5.3.4",
"versionStartIncluding": "5.3.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:*",
"versionEndIncluding": "6.1.3",
"versionStartIncluding": "6.1.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:*",
"versionEndIncluding": "7.4.5",
"versionStartIncluding": "7.1.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:*",
"versionEndIncluding": "8.1.1",
"versionStartIncluding": "8.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Muhammad Sobirov"
}
],
"datePublic": "2026-08-20T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "webpack-dev-middleware resolves a request to a local file in getFilenameFromUrl by testing the request pathname against a traversal guard and then slicing it at a fixed character offset. The guard, UP_PATH_REGEXP applied to path.normalize(`./${pathname}`), only matches \"..\" that stands as a whole path segment, while the containment test is the string comparison pathname.startsWith(publicPathPathname) and the file path is built as path.join(outputPath, pathname.slice(publicPathPathname.length)). When the configured publicPath has no trailing slash, a request such as GET /assets../.env against publicPath /assets yields the pathname /assets../.env, whose only dot-dot sits inside the segment \"assets..\" and so passes the guard, but the offset slice cuts within that segment and hands \"../.env\" to path.join, resolving one directory above outputPath. Reading a file from that path requires the middleware to be backed by the physical filesystem, which happens when writeToDisk is true or a custom outputFileSystem is supplied, since the default memfs volume holds only build output. Traversal depth is limited to a single directory because a separately delimited dot-dot segment is collapsed during URL parsing before the guard runs. The default publicPath value of \"auto\" resolves to \"/\" and is not affected. This is an incomplete fix for CVE-2024-29180: the guard and offset slice were introduced by that fix and are present in every release from 5.3.4, 6.1.2 and 7.1.0 onward."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.3,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"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",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "NONE"
},
"format": "CVSS"
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-22",
"description": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-24T13:12:01.148Z",
"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck"
},
"references": [
{
"tags": [
"product"
],
"url": "https://github.com/webpack/webpack-dev-middleware"
},
{
"tags": [
"technical-description"
],
"url": "https://github.com/webpack/webpack-dev-middleware/blob/v8.1.1/src/middleware.js"
},
{
"tags": [
"related"
],
"url": "https://github.com/advisories/GHSA-wr3j-pwj9-hqq6"
},
{
"name": "VulnCheck Advisory: webpack-dev-middleware Path Traversal via Offset Slice on a Non-Slash-Terminated publicPath",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/webpack-dev-middleware-path-traversal-via-offset-slice-on-a-non-slash-terminated-publicpath"
}
],
"title": "webpack-dev-middleware Path Traversal via Offset Slice on a Non-Slash-Terminated publicPath",
"x_generator": {
"engine": "vulncheck-endgame"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-76844",
"datePublished": "2026-08-24T13:12:01.148Z",
"dateReserved": "2026-08-19T20:34:19.724Z",
"dateUpdated": "2026-08-26T18:22:44.932Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-76844",
"date": "2026-09-17",
"epss": "0.00371",
"percentile": "0.3083"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-76844\",\"sourceIdentifier\":\"disclosure@vulncheck.com\",\"published\":\"2026-08-24T14:17:02.250\",\"lastModified\":\"2026-08-26T19:17:05.053\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"webpack-dev-middleware resolves a request to a local file in getFilenameFromUrl by testing the request pathname against a traversal guard and then slicing it at a fixed character offset. The guard, UP_PATH_REGEXP applied to path.normalize(`./${pathname}`), only matches \\\"..\\\" that stands as a whole path segment, while the containment test is the string comparison pathname.startsWith(publicPathPathname) and the file path is built as path.join(outputPath, pathname.slice(publicPathPathname.length)). When the configured publicPath has no trailing slash, a request such as GET /assets../.env against publicPath /assets yields the pathname /assets../.env, whose only dot-dot sits inside the segment \\\"assets..\\\" and so passes the guard, but the offset slice cuts within that segment and hands \\\"../.env\\\" to path.join, resolving one directory above outputPath. Reading a file from that path requires the middleware to be backed by the physical filesystem, which happens when writeToDisk is true or a custom outputFileSystem is supplied, since the default memfs volume holds only build output. Traversal depth is limited to a single directory because a separately delimited dot-dot segment is collapsed during URL parsing before the guard runs. The default publicPath value of \\\"auto\\\" resolves to \\\"/\\\" and is not affected. This is an incomplete fix for CVE-2024-29180: the guard and offset slice were introduced by that fix and are present in every release from 5.3.4, 6.1.2 and 7.1.0 onward.\"}],\"affected\":[{\"source\":\"disclosure@vulncheck.com\",\"affectedData\":[{\"vendor\":\"webpack\",\"product\":\"webpack-dev-middleware\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://www.npmjs.com/package/webpack-dev-middleware\",\"packageName\":\"webpack-dev-middleware\",\"packageURL\":\"pkg:npm/webpack-dev-middleware\",\"versions\":[{\"version\":\"5.3.4\",\"lessThanOrEqual\":\"5.3.4\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.1.2\",\"lessThanOrEqual\":\"6.1.3\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"7.1.0\",\"lessThanOrEqual\":\"7.4.5\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"8.0.0\",\"lessThanOrEqual\":\"8.1.1\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"disclosure@vulncheck.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":8.3,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"PASSIVE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"HIGH\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"disclosure@vulncheck.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N\",\"baseScore\":7.4,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":4.0}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-08-26T18:22:33.313523Z\",\"id\":\"CVE-2026-76844\",\"options\":[{\"exploitation\":\"poc\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"disclosure@vulncheck.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-22\"}]}],\"references\":[{\"url\":\"https://github.com/advisories/GHSA-wr3j-pwj9-hqq6\",\"source\":\"disclosure@vulncheck.com\"},{\"url\":\"https://github.com/webpack/webpack-dev-middleware\",\"source\":\"disclosure@vulncheck.com\"},{\"url\":\"https://github.com/webpack/webpack-dev-middleware/blob/v8.1.1/src/middleware.js\",\"source\":\"disclosure@vulncheck.com\"},{\"url\":\"https://www.vulncheck.com/advisories/webpack-dev-middleware-path-traversal-via-offset-slice-on-a-non-slash-terminated-publicpath\",\"source\":\"disclosure@vulncheck.com\"}]}}",
"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-09-17T18:49:40+00:00",
"cve": "CVE-2026-76844",
"id": "CVE-2026-76844",
"initial_release_date": "2026-08-24T13:12:01.148000+00:00",
"product_status:fixed": "2",
"product_status:known_affected": "50",
"product_status:known_not_affected": "69",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "webpack-dev-middleware: webpack-dev-middleware: Information Disclosure via Path Traversal",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-76844.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-09-15T01:13:10Z",
"cve": "CVE-2026-76844",
"id": "CVE-2026-76844",
"initial_release_date": "2026-08-27T16:50:25Z",
"product_status:known_affected": "15",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-76844",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-76844.json",
"version": "4"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-76844\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-26T18:22:33.313523Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-26T18:22:40.939Z\"}}], \"cna\": {\"title\": \"webpack-dev-middleware Path Traversal via Offset Slice on a Non-Slash-Terminated publicPath\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Muhammad Sobirov\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 8.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"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\", \"userInteraction\": \"PASSIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"HIGH\", \"vulnConfidentialityImpact\": \"HIGH\"}}, {\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 7.4, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"webpack\", \"product\": \"webpack-dev-middleware\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.3.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.3.4\"}, {\"status\": \"affected\", \"version\": \"6.1.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.3\"}, {\"status\": \"affected\", \"version\": \"7.1.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"7.4.5\"}, {\"status\": \"affected\", \"version\": \"8.0.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"8.1.1\"}], \"packageURL\": \"pkg:npm/webpack-dev-middleware\", \"packageName\": \"webpack-dev-middleware\", \"collectionURL\": \"https://www.npmjs.com/package/webpack-dev-middleware\", \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2026-08-20T00:00:00.000Z\", \"references\": [{\"url\": \"https://github.com/webpack/webpack-dev-middleware\", \"tags\": [\"product\"]}, {\"url\": \"https://github.com/webpack/webpack-dev-middleware/blob/v8.1.1/src/middleware.js\", \"tags\": [\"technical-description\"]}, {\"url\": \"https://github.com/advisories/GHSA-wr3j-pwj9-hqq6\", \"tags\": [\"related\"]}, {\"url\": \"https://www.vulncheck.com/advisories/webpack-dev-middleware-path-traversal-via-offset-slice-on-a-non-slash-terminated-publicpath\", \"name\": \"VulnCheck Advisory: webpack-dev-middleware Path Traversal via Offset Slice on a Non-Slash-Terminated publicPath\", \"tags\": [\"third-party-advisory\"]}], \"x_generator\": {\"engine\": \"vulncheck-endgame\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"webpack-dev-middleware resolves a request to a local file in getFilenameFromUrl by testing the request pathname against a traversal guard and then slicing it at a fixed character offset. The guard, UP_PATH_REGEXP applied to path.normalize(`./${pathname}`), only matches \\\"..\\\" that stands as a whole path segment, while the containment test is the string comparison pathname.startsWith(publicPathPathname) and the file path is built as path.join(outputPath, pathname.slice(publicPathPathname.length)). When the configured publicPath has no trailing slash, a request such as GET /assets../.env against publicPath /assets yields the pathname /assets../.env, whose only dot-dot sits inside the segment \\\"assets..\\\" and so passes the guard, but the offset slice cuts within that segment and hands \\\"../.env\\\" to path.join, resolving one directory above outputPath. Reading a file from that path requires the middleware to be backed by the physical filesystem, which happens when writeToDisk is true or a custom outputFileSystem is supplied, since the default memfs volume holds only build output. Traversal depth is limited to a single directory because a separately delimited dot-dot segment is collapsed during URL parsing before the guard runs. The default publicPath value of \\\"auto\\\" resolves to \\\"/\\\" and is not affected. This is an incomplete fix for CVE-2024-29180: the guard and offset slice were introduced by that fix and are present in every release from 5.3.4, 6.1.2 and 7.1.0 onward.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-22\", \"description\": \"Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndIncluding\": \"5.3.4\", \"versionStartIncluding\": \"5.3.4\"}, {\"criteria\": \"cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndIncluding\": \"6.1.3\", \"versionStartIncluding\": \"6.1.2\"}, {\"criteria\": \"cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndIncluding\": \"7.4.5\", \"versionStartIncluding\": \"7.1.0\"}, {\"criteria\": \"cpe:2.3:a:webpack.js:webpack-dev-middleware:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndIncluding\": \"8.1.1\", \"versionStartIncluding\": \"8.0.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"83251b91-4cc7-4094-a5c7-464a1b83ea10\", \"shortName\": \"VulnCheck\", \"dateUpdated\": \"2026-08-24T13:12:01.148Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-76844\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-26T18:22:44.932Z\", \"dateReserved\": \"2026-08-19T20:34:19.724Z\", \"assignerOrgId\": \"83251b91-4cc7-4094-a5c7-464a1b83ea10\", \"datePublished\": \"2026-08-24T13:12:01.148Z\", \"assignerShortName\": \"VulnCheck\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…