CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HCVE-2026-55699
Medium (6.5) in pnpm pnpm. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in pnpm 10.34.2, 11.5.3.
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.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-22, CWE-73
- Published
- Modified
- Record from
- the NVD, synced
Affected
- pnpm:pnpm
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-4gxm-v5v7-fqc4 | npm | pnpm | <10.34.2 | 10.34.2 |
| GHSA-4gxm-v5v7-fqc4 | npm | pnpm | >=11.0.0 <11.5.3 | 11.5.3 |