CVE-2026-55487 - Vulnerability Details - OpenCVE

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, the generic peer-suffix normalizer also stripped parenthesized text from git, URL, tarball, file, and other opaque locators. Approval for one source string could therefore authorize a different attacker-controlled source whose locator normalized to the same value. This vulnerability is fixed in 10.34.2 and 11.5.3.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact total

No data.

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products

References

Link	Providers
https://github.com/pnpm/pnpm/security/advisories/GHSA-5wx6-mg75-v57r

History

Thu, 25 Jun 2026 18:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Thu, 25 Jun 2026 17:30:00 +0000

Type	Values Removed	Values Added
Description		pnpm is a package manager. Prior to 10.34.2 and 11.5.3, the generic peer-suffix normalizer also stripped parenthesized text from git, URL, tarball, file, and other opaque locators. Approval for one source string could therefore authorize a different attacker-controlled source whose locator normalized to the same value. This vulnerability is fixed in 10.34.2 and 11.5.3.
Title		pnpm: manifest identity spoof satisfies allowBuilds and runs attacker lifecycle
Weaknesses		CWE-346 CWE-693 CWE-829
References		https://github.com/pnpm/pnpm/security/advisories/GHSA-5wx6-mg75-v57r
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'}`

MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-06-25T16:41:12.441Z

Updated: 2026-06-25T18:03:06.773Z

Reserved: 2026-06-16T22:28:27.061Z

Link: CVE-2026-55487

Vulnrichment

Updated: 2026-06-25T18:02:33.707Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-06-25T19:00:08Z

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