{"id":"CVE-2026-101044","title":"pacquet, the Rust package-manager component shipped in the pnpm npm package versions >=12.0.0-alpha.0 and <12.0.0-alpha.5, does not validate dependency alias/name paths taken from a lockfile before using them in install-time filesystem j…","summary":"pacquet, the Rust package-manager component shipped in the pnpm npm package versions >=12.0.0-alpha.0 and <12.0.0-alpha.5, does not validate dependency alias/name paths taken from a lockfile before using them in install-time filesystem j…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L","cwe":["CWE-22"],"vendor":"pnpm","product":"pnpm","affected":["pnpm >= 12.0.0-alpha.0 < 12.0.0-alpha.5"],"published":"2026-09-27","updated":"2026-09-30","sourceUpdated":"2026-09-30T17:23:08.953","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-101044","references":[{"url":"https://github.com/pnpm/pnpm/security/advisories/GHSA-2rx9-3g3h-c2jv","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/pacquet-before-12.0.0-alpha.5-path-traversal-via-lockfile-alias","label":"disclosure@vulncheck.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101044.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-101044"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2542140"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-101044"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101044"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00259,"epssPercentile":0.17456,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-30T15:28:48.886529Z"},"ingestedAt":"2026-09-27T17:56:02.212Z","slug":"CVE-2026-101044","body":"## Overview\n\npacquet, the Rust package-manager component shipped in the pnpm npm package versions >=12.0.0-alpha.0 and <12.0.0-alpha.5, does not validate dependency alias/name paths taken from a lockfile before using them in install-time filesystem joins. When a user installs a project with an attacker-supplied lockfile using --trust-lockfile or a frozen lockfile, alias entries containing path traversal segments (for example '../../escaped-link') are used when creating dependency and package links, bin destinations, hoisted entries, and virtual-store slots, allowing symlinks and directories to be created outside the intended project and node_modules boundary. Version 12.0.0-alpha.5 validates dependency names and every virtual-store slot path with a shared safe-join containment helper before any filesystem materialization, rejecting traversal, absolute, platform-specific, and reserved names with ERR_PNPM_INVALID_DEPENDENCY_NAME.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Important · affected: Red Hat AMQ Broker 7, Red Hat Build of Keycloak · no fix planned: Red Hat AMQ Broker 7, Red Hat Build of Keycloak · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101044.json)","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}