{"id":"CVE-2026-82392","state":"PUBLISHED","title":"pnpm: Virtual store linker path traversal via unvalidated depPath name in lockfileToDepGraph","description":"pnpm is a package manager. Prior to 10.34.5 and from 11.0.0 until 11.11.0, pnpm parses the package name from attacker-controlled pnpm-lock.yaml packages keys with dp.parse(depPath).name and uses it without validation in deps/graph-builder/src/lockfileToDepGraph.ts and pnpm11/deps/graph-builder/src/lockfileToDepGraph.ts. The name reaches path.join(modules, pkgName), storeController.importPackage, and pnpm11/lockfile/to-pnp/src/index.ts, allowing package contents to be written outside node_modules when a user runs pnpm install. When dangerouslyAllowAllBuilds or a matching allowBuilds entry permits lifecycle scripts, the escaped package can execute code with the user's privileges. This issue is fixed in versions 10.34.5 and 11.11.0.","publishedAt":"2026-08-31T21:03:25.652Z","updatedAt":"2026-09-01T14:57:53.435Z","severity":{"score":7.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["pnpm pnpm"],"affected":[{"vendor":"pnpm","product":"pnpm","versions":[{"version":"< 10.34.5","status":"affected"},{"version":">= 11.0.0, < 11.11.0","status":"affected"}]}],"references":["https://github.com/pnpm/pnpm/security/advisories/GHSA-c59q-g84q-2gj5","https://github.com/pnpm/pnpm/pull/12872","https://github.com/pnpm/pnpm/pull/12890","https://github.com/pnpm/pnpm/commit/51300fd41c5e4c8f47635108e373cc3d1f324fa7","https://github.com/pnpm/pnpm/commit/78e29fe5583a1e5d69ea05e414eff310f78d5ed9","https://github.com/pnpm/pnpm/releases/tag/v10.34.5","https://github.com/pnpm/pnpm/releases/tag/v11.11.0"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/82xxx/CVE-2026-82392.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-82392","state":"PUBLISHED","datePublished":"2026-08-31T21:03:25.652Z","dateUpdated":"2026-09-01T14:57:53.435Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-08-28T22:00:43.511Z"},"containers":{"cna":{"title":"pnpm: Virtual store linker path traversal via unvalidated depPath name in lockfileToDepGraph","descriptions":[{"lang":"en","value":"pnpm is a package manager. Prior to 10.34.5 and from 11.0.0 until 11.11.0, pnpm parses the package name from attacker-controlled pnpm-lock.yaml packages keys with dp.parse(depPath).name and uses it without validation in deps/graph-builder/src/lockfileToDepGraph.ts and pnpm11/deps/graph-builder/src/lockfileToDepGraph.ts. The name reaches path.join(modules, pkgName), storeController.importPackage, and pnpm11/lockfile/to-pnp/src/index.ts, allowing package contents to be written outside node_modules when a user runs pnpm install. When dangerouslyAllowAllBuilds or a matching allowBuilds entry permits lifecycle scripts, the escaped package can execute code with the user's privileges. This issue is fixed in versions 10.34.5 and 11.11.0."}],"affected":[{"vendor":"pnpm","product":"pnpm","versions":[{"version":"< 10.34.5","status":"affected"},{"version":">= 11.0.0, < 11.11.0","status":"affected"}]}],"references":[{"url":"https://github.com/pnpm/pnpm/security/advisories/GHSA-c59q-g84q-2gj5","name":"https://github.com/pnpm/pnpm/security/advisories/GHSA-c59q-g84q-2gj5","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/pnpm/pnpm/pull/12872","name":"https://github.com/pnpm/pnpm/pull/12872","tags":["x_refsource_MISC"]},{"url":"https://github.com/pnpm/pnpm/pull/12890","name":"https://github.com/pnpm/pnpm/pull/12890","tags":["x_refsource_MISC"]},{"url":"https://github.com/pnpm/pnpm/commit/51300fd41c5e4c8f47635108e373cc3d1f324fa7","name":"https://github.com/pnpm/pnpm/commit/51300fd41c5e4c8f47635108e373cc3d1f324fa7","tags":["x_refsource_MISC"]},{"url":"https://github.com/pnpm/pnpm/commit/78e29fe5583a1e5d69ea05e414eff310f78d5ed9","name":"https://github.com/pnpm/pnpm/commit/78e29fe5583a1e5d69ea05e414eff310f78d5ed9","tags":["x_refsource_MISC"]},{"url":"https://github.com/pnpm/pnpm/releases/tag/v10.34.5","name":"https://github.com/pnpm/pnpm/releases/tag/v10.34.5","tags":["x_refsource_MISC"]},{"url":"https://github.com/pnpm/pnpm/releases/tag/v11.11.0","name":"https://github.com/pnpm/pnpm/releases/tag/v11.11.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":7.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-08-31T21:03:25.652Z"},"source":{"advisory":"GHSA-c59q-g84q-2gj5","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-01T14:15:09.715556Z","id":"CVE-2026-82392","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-01T14:57:53.435Z"}}]}}}