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CVE-2026-24131

CVE-2026-24131 · pnpm has Path Traversal via arbitrary file permission modification

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.7 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • pnpm

    Versions
    • < 10.28.2: Affected

    No fix published

  • pnpm npm

    Affected ranges
    • SEMVER: < 10.28.2

    Update to 10.28.2

Original sources

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