{"id":"CVE-2026-82393","title":"pnpm is a package manager","summary":"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…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-22","CWE-73","CWE-94"],"vendor":"pnpm","product":"pnpm","affected":["pnpm < 10.34.5","pnpm >= 11.0.0, < 11.11.0"],"patched":["pnpm 10.34.5","pnpm 11.11.0"],"published":"2026-08-31","updated":"2026-09-09","sourceUpdated":"2026-09-09T21:09:13.080","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82393","references":[{"url":"https://github.com/pnpm/pnpm/commit/51300fd41c5e4c8f47635108e373cc3d1f324fa7","label":"security-advisories@github.com"},{"url":"https://github.com/pnpm/pnpm/commit/78e29fe5583a1e5d69ea05e414eff310f78d5ed9","label":"security-advisories@github.com"},{"url":"https://github.com/pnpm/pnpm/pull/12872","label":"security-advisories@github.com"},{"url":"https://github.com/pnpm/pnpm/pull/12890","label":"security-advisories@github.com"},{"url":"https://github.com/pnpm/pnpm/releases/tag/v10.34.5","label":"security-advisories@github.com"},{"url":"https://github.com/pnpm/pnpm/releases/tag/v11.11.0","label":"security-advisories@github.com"},{"url":"https://github.com/pnpm/pnpm/security/advisories/GHSA-vq4v-j7r6-jq4m","label":"security-advisories@github.com"},{"url":"https://github.com/pnpm/pnpm/security/advisories/GHSA-vq4v-j7r6-jq4m","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82393"},{"url":"https://github.com/advisories/GHSA-vq4v-j7r6-jq4m"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-82393.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-82393"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2526818"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-82393"}],"tags":["nvd","ghsa","npm","csaf","vex","red-hat"],"epss":0.00413,"epssPercentile":0.35301,"aliases":["GHSA-vq4v-j7r6-jq4m"],"ecosystem":"npm","ingestedAt":"2026-09-02T14:45:30.182Z","slug":"CVE-2026-82393","body":"## Overview\n\npnpm 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-82393)\n\nAffected packages:\n\n- `pnpm < 10.34.5`\n- `pnpm >= 11.0.0, < 11.11.0`\n\nPatched in:\n\n- `pnpm 10.34.5`\n- `pnpm 11.11.0`\n\nSource: https://github.com/advisories/GHSA-vq4v-j7r6-jq4m\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · updated 2026-09-24 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-82393.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}