{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-82393", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-28T22:00:43.511Z", "datePublished": "2026-08-31T21:12:09.196Z", "dateUpdated": "2026-08-31T21:12:09.196Z"}, "containers": {"cna": {"title": "pnpm: A tarball dependency's manifest `name` escapes node_modules \u2192 arbitrary file write/overwrite on install", "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-73", "lang": "en", "description": "CWE-73: External Control of File Name or Path", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-94", "lang": "en", "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/pnpm/pnpm/security/advisories/GHSA-vq4v-j7r6-jq4m", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/pnpm/pnpm/security/advisories/GHSA-vq4v-j7r6-jq4m"}, {"name": "https://github.com/pnpm/pnpm/pull/12872", "tags": ["x_refsource_MISC"], "url": "https://github.com/pnpm/pnpm/pull/12872"}, {"name": "https://github.com/pnpm/pnpm/pull/12890", "tags": ["x_refsource_MISC"], "url": "https://github.com/pnpm/pnpm/pull/12890"}, {"name": "https://github.com/pnpm/pnpm/commit/51300fd41c5e4c8f47635108e373cc3d1f324fa7", "tags": ["x_refsource_MISC"], "url": "https://github.com/pnpm/pnpm/commit/51300fd41c5e4c8f47635108e373cc3d1f324fa7"}, {"name": "https://github.com/pnpm/pnpm/commit/78e29fe5583a1e5d69ea05e414eff310f78d5ed9", "tags": ["x_refsource_MISC"], "url": "https://github.com/pnpm/pnpm/commit/78e29fe5583a1e5d69ea05e414eff310f78d5ed9"}, {"name": "https://github.com/pnpm/pnpm/releases/tag/v10.34.5", "tags": ["x_refsource_MISC"], "url": "https://github.com/pnpm/pnpm/releases/tag/v10.34.5"}, {"name": "https://github.com/pnpm/pnpm/releases/tag/v11.11.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/pnpm/pnpm/releases/tag/v11.11.0"}], "affected": [{"vendor": "pnpm", "product": "pnpm", "versions": [{"version": "< 10.34.5", "status": "affected"}, {"version": ">= 11.0.0, < 11.11.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-31T21:12:09.196Z"}, "descriptions": [{"lang": "en", "value": "pnpm is a package manager. Prior to 10.34.5 and 11.11.0, pnpm accepts a scoped path traversal in a tarball dependency's package.json manifest name because pnpm11/resolving/npm-resolver/src/pickPackage.ts rejects slash characters only for unscoped names. During pnpm install, the unvalidated name reaches raw path joins in pnpm11/installing/deps-resolver/src/resolvePeers.ts, pnpm11/installing/deps-resolver/src/index.ts, and pnpm11/deps/graph-builder/src/lockfileToDepGraph.ts, causing package extraction outside node_modules and allowing attacker-controlled files to overwrite arbitrary filesystem paths even when --ignore-scripts is used. The overwrite can replace shell startup files, Git hooks, or installed package code and lead to code execution. This issue is fixed in versions 10.34.5, and 11.11.0."}], "source": {"advisory": "GHSA-vq4v-j7r6-jq4m", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "pnpm", "vendor": "pnpm", "versions": [{"status": "affected", "version": "< 10.34.5"}, {"status": "affected", "version": ">= 11.0.0, < 11.11.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "pnpm is a package manager. Prior to 10.34.5 and 11.11.0, pnpm accepts a scoped path traversal in a tarball dependency's package.json manifest name because pnpm11/resolving/npm-resolver/src/pickPackage.ts rejects slash characters only for unscoped names. During pnpm install, the unvalidated name reaches raw path joins in pnpm11/installing/deps-resolver/src/resolvePeers.ts, pnpm11/installing/deps-resolver/src/index.ts, and pnpm11/deps/graph-builder/src/lockfileToDepGraph.ts, causing package extraction outside node_modules and allowing attacker-controlled files to overwrite arbitrary filesystem paths even when --ignore-scripts is used. The overwrite can replace shell startup files, Git hooks, or installed package code and lead to code execution. This issue is fixed in versions 10.34.5, and 11.11.0."}], "id": "CVE-2026-82393", "lastModified": "2026-08-31T22:17:22.353", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-08-31T22:17:22.353", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/pnpm/pnpm/commit/51300fd41c5e4c8f47635108e373cc3d1f324fa7"}, {"source": "security-advisories@github.com", "url": "https://github.com/pnpm/pnpm/commit/78e29fe5583a1e5d69ea05e414eff310f78d5ed9"}, {"source": "security-advisories@github.com", "url": "https://github.com/pnpm/pnpm/pull/12872"}, {"source": "security-advisories@github.com", "url": "https://github.com/pnpm/pnpm/pull/12890"}, {"source": "security-advisories@github.com", "url": "https://github.com/pnpm/pnpm/releases/tag/v10.34.5"}, {"source": "security-advisories@github.com", "url": "https://github.com/pnpm/pnpm/releases/tag/v11.11.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/pnpm/pnpm/security/advisories/GHSA-vq4v-j7r6-jq4m"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-73"}, {"lang": "en", "value": "CWE-94"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}