CVE-2026-55487

HIGH

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.

CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Published: 6/25/2026Modified: 6/29/2026

Related Intelligence (1)

HIGHVulnerability

NVD HIGH: CVE-2026-55487 — pnpm is a package manager. Prior to 10.34.2 and 11.5.3, the generic peer-suffix ...

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.

CVE-2026-55487
NIST NVD

References (2)

https://github.com/pnpm/pnpm/security/advisories/GHSA-5wx6-mg75-v57rExploitVendor Advisoryhttps://github.com/pnpm/pnpm/security/advisories/GHSA-5wx6-mg75-v57rExploitVendor Advisory