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

No history.

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

{"id": "CVE-2026-55180", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-55180", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-25T17:58:14.420758Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "pnpm", "product": "pnpm", "versions": [{"status": "affected", "version": "< 10.34.2"}, {"status": "affected", "version": ">= 11.0.0, < 11.5.3"}]}]}], "published": "2026-06-25T18:16:40.327", "references": [{"url": "https://github.com/pnpm/pnpm/security/advisories/GHSA-3qhv-2rgh-x77r", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/pnpm/pnpm/security/advisories/GHSA-3qhv-2rgh-x77r", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-201"}, {"lang": "en", "value": "CWE-522"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-06-29T21:16:13.053", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:pnpm:pnpm:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "78477B45-9B80-4320-A5F4-2AF8D030DA04", "versionEndExcluding": "10.34.2"}, {"criteria": "cpe:2.3:a:pnpm:pnpm:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "F72C2733-EDFC-4CBF-8B11-7C636ABEBC1A", "versionEndExcluding": "11.5.3", "versionStartIncluding": "11.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}