CVE-2026-24131

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/pnpm/pnpm/commit/17432ad5bbed5c2e77255ca6d56a1449bbcfd943	Patch
https://github.com/pnpm/pnpm/releases/tag/v10.28.2	Release Notes
https://github.com/pnpm/pnpm/security/advisories/GHSA-v253-rj99-jwpq	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:pnpm:pnpm:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2026-01-26 22:15

Updated : 2026-01-28 17:05

NVD link : CVE-2026-24131

Mitre link : CVE-2026-24131

CVE.ORG link : CVE-2026-24131

JSON object : View

Products Affected

pnpm

pnpm

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-732

Incorrect Permission Assignment for Critical Resource

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