CVE-2026-55699

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 v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/pnpm/pnpm/security/advisories/GHSA-4gxm-v5v7-fqc4	Exploit Vendor Advisory
https://github.com/pnpm/pnpm/security/advisories/GHSA-4gxm-v5v7-fqc4	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

29 Jun 2026, 21:16

Type	Values Removed	Values Added
References	~~() https://github.com/pnpm/pnpm/security/advisories/GHSA-4gxm-v5v7-fqc4 -~~	() https://github.com/pnpm/pnpm/security/advisories/GHSA-4gxm-v5v7-fqc4 - Exploit, Vendor Advisory
First Time		Pnpm Pnpm pnpm
CPE		cpe:2.3:a:pnpm:pnpm::::::node.js::*

25 Jun 2026, 19:16

Type	Values Removed	Values Added
References	~~() https://github.com/pnpm/pnpm/security/advisories/GHSA-4gxm-v5v7-fqc4 -~~	() https://github.com/pnpm/pnpm/security/advisories/GHSA-4gxm-v5v7-fqc4 -

25 Jun 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-25 18:16

Updated : 2026-06-29 21:16

NVD link : CVE-2026-55699

Mitre link : CVE-2026-55699

CVE.ORG link : CVE-2026-55699

JSON object : View

Products Affected

pnpm

pnpm

CWE

CWE-22

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

CWE-73

External Control of File Name or Path

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