CVE-2026-55700 — pnpm: stage download writes outside destination via manifest version traversal
pnpm is a package manager. From 11.3.0 until 11.5.3, `pnpm stage download` derived a local filename from registry-controlled package name and version fields. A crafted manifest …
Published: 2026-06-25 · CVSS: 7.1 · CVSS 3.1
pnpm is a package manager. From 11.3.0 until 11.5.3, `pnpm stage download` derived a local filename from registry-controlled package name and version fields. A crafted manifest could escape the selected download directory and overwrite another reachable file. The merged fix validates both fields, derives one safe filename, and verifies the final destination before writing. This vulnerability is fixed in 11.5.3.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7