CVE-2026-24131

The record

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. **Note:** Only affects Unix/Linux/macOS. Windows is not affected (`fixBin` gated by `EXECUTABLE_SHEBANG_SUPPORTED`).

Affected packages

Related vulnerabilities

• GHSA-v253-rj99-jwpq pnpm has Path Traversal via arbitrary file permission modification Same vulnerability
• GHSA-6pfh-p556-v868 pnpm: Binary ZIP extraction allows arbitrary file write via path traversal (Zip Slip) Also affects pnpm
• GHSA-6x96-7vc8-cm3p pnpm has Windows-specific tarball Path Traversal Also affects pnpm
• GHSA-xpqm-wm3m-f34h pnpm scoped bin name Path Traversal allows arbitrary file creation outside… Also affects pnpm
• GHSA-m733-5w8f-5ggw pnpm has symlink traversal in file:/git dependencies Also affects pnpm
• CVE-2026-24056 pnpm has symlink traversal in file:/git dependencies Also affects pnpm
• CVE-2026-23890 pnpm scoped bin name Path Traversal allows arbitrary file creation outside… Also affects pnpm
• CVE-2026-23888 pnpm: Binary ZIP extraction allows arbitrary file write via path traversal (Zip Slip) Also affects pnpm