{"id":"CVE-2026-101044","revision":"965d19efe18e41faa4946f7928184514","records":[{"revision":"965d19efe18e41faa4946f7928184514","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-101044","aliases":[],"title":"pacquet before 12.0.0-alpha.5 Path Traversal via lockfile alias","description":"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 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.","state":0,"publishedAt":"2026-09-27T17:02:33.798+00:00","modifiedAt":"2026-09-30T15:29:02.862+00:00","affected":[{"ecosystem":"Vendor product","name":"pnpm","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"pnpm\",\n                    \"product\": \"pnpm\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/pnpm\",\n                    \"versions\": [\n                        {\n                            \"version\": \"12.0.0-alpha.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"12.0.0-alpha.5\"\n                        },\n                        {\n                            \"version\": \"12.0.0-alpha.5\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N","score":7.1,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L","score":7.1,"severity":"HIGH"}],"references":["https://github.com/pnpm/pnpm/security/advisories/GHSA-2rx9-3g3h-c2jv","https://www.vulncheck.com/advisories/pacquet-before-12.0.0-alpha.5-path-traversal-via-lockfile-alias"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-101044","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-101044","identifiers":["CVE-2026-101044"]},"retained":false,"historicalAffected":[]}],"coverage":[]}