CVE-2026-55180

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm and pacquet expanded ${ENV_VAR} placeholders from repository-controlled .npmrc and pnpm-workspace.yaml into registry request destinations and registry credentials. A malicious repository could cause dependency resolution to send victim environment secrets to an attacker-selected registry before lifecycle scripts run. 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 HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/pnpm/pnpm/security/advisories/GHSA-3qhv-2rgh-x77r	Exploit Vendor Advisory
https://github.com/pnpm/pnpm/security/advisories/GHSA-3qhv-2rgh-x77r	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
First Time		Pnpm Pnpm pnpm
CPE		cpe:2.3:a:pnpm:pnpm::::::node.js::*
References	~~() https://github.com/pnpm/pnpm/security/advisories/GHSA-3qhv-2rgh-x77r -~~	() https://github.com/pnpm/pnpm/security/advisories/GHSA-3qhv-2rgh-x77r - Exploit, Vendor Advisory

25 Jun 2026, 19:16

Type	Values Removed	Values Added
References	~~() https://github.com/pnpm/pnpm/security/advisories/GHSA-3qhv-2rgh-x77r -~~	() https://github.com/pnpm/pnpm/security/advisories/GHSA-3qhv-2rgh-x77r -

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-2026-55180

Mitre link : CVE-2026-55180

CVE.ORG link : CVE-2026-55180

JSON object : View

Products Affected

pnpm

pnpm

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-201

Insertion of Sensitive Information Into Sent Data

CWE-522

Insufficiently Protected Credentials

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