CVE-2026-55699
Last modified
CVE-2026-55699 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Pnpm | Pnpm | < 10.34.2 |
| Pnpm | Pnpm | >= 11.0.0, < 11.5.3 |
References
- https://github.com/pnpm/pnpm/security/advisories/GHSA-4gxm-v5v7-fqc4Exploit, Vendor Advisory
- https://github.com/pnpm/pnpm/security/advisories/GHSA-4gxm-v5v7-fqc4Exploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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