Vulnerability Description
pnpm is a package manager. Prior to 10.34.2 and 11.5.3, Manifest bin object keys such as "", ".", and ".." passed pnpm's bin-name guard. When a malicious package was installed globally, later global remove, update, or add-replacement flows could re-derive those names from the installed manifest and pass path.join(globalBinDir, binName) to removeBin. For "." this targets the global bin directory; for ".." this targets its parent. This vulnerability is fixed in 10.34.2 and 11.5.3.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/pnpm/pnpm/security/advisories/GHSA-4gxm-v5v7-fqc4
- https://github.com/pnpm/pnpm/security/advisories/GHSA-4gxm-v5v7-fqc4
FAQ
What is CVE-2026-55699?
CVE-2026-55699 is a vulnerability with a CVSS score of 6.5 (MEDIUM). pnpm is a package manager. Prior to 10.34.2 and 11.5.3, Manifest bin object keys such as "", ".", and ".." passed pnpm's bin-name guard. When a malicious package was installed globally, later global r...
How severe is CVE-2026-55699?
CVE-2026-55699 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-55699?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.