CVE-2026-55699

MEDIUM

pnpm: reserved bin name deletes PNPM_HOME during global remove

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 6.5
EPSS 0.0029
EPSS Percentile 20.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-22 CWE-73
Status published
Products (4)
npm/pnpm 0 - 10.34.2npm
npm/pnpm 11.0.0 - 11.5.3npm
pnpm/pnpm < 10.34.2 (2 CPE variants)
pnpm/pnpm >= 11.0.0, < 11.5.3
Published Jun 25, 2026
Tracked Since Jun 25, 2026