Medium severity5.5OSV Advisory· Published Jan 26, 2026· Updated Jun 17, 2026
CVE-2026-24131
CVE-2026-24131
Description
pnpm is a package manager. Prior to version 10.28.2, when pnpm processes a package's directories.bin field, it uses path.join() without validating the result stays within the package root. A malicious npm package can specify "directories": {"bin": "../../../../tmp"} to escape the package directory, causing pnpm to chmod 755 files at arbitrary locations. This issue only affects Unix/Linux/macOS. Windows is not affected (fixBin gated by EXECUTABLE_SHEBANG_SUPPORTED). Version 10.28.2 contains a patch.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
pnpmnpm | < 10.28.2 | 10.28.2 |
Affected products
30.19.0, @pnpm/[email protected], @pnpm/[email protected], …+ 1 more
- (no CPE)range: 0.19.0, @pnpm/[email protected], @pnpm/[email protected], …
- cpe:2.3:a:pnpm:pnpm:*:*:*:*:*:node.js:*:*range: <10.28.2
Patches
Vulnerability mechanics
References
4- github.com/pnpm/pnpm/commit/17432ad5bbed5c2e77255ca6d56a1449bbcfd943nvdPatchWEB
- github.com/pnpm/pnpm/security/advisories/GHSA-v253-rj99-jwpqnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-v253-rj99-jwpqghsaADVISORY
- github.com/pnpm/pnpm/releases/tag/v10.28.2nvdRelease NotesWEB
News mentions
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