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OpenAdvisories
High · 7.5 CVE-2026-55487 EUVD-2026-39481GHSA-5wx6-mg75-v57r

pnpm: manifest identity spoof satisfies allowBuilds and runs attacker lifecycle

Published Jun 25, 2026 · Updated Jun 25, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
pnpm pnpm < 10.34.2, >= 11.0.0, < 11.5.3 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling pnpm-stage0 No fix yet —

Affected packages

EcosystemPackageAffectedFixedRecord
npm pnpm < 10.34.2 10.34.2 GHSA-5wx6-mg75-v57r
npm pnpm >= 11.0.0, < 11.5.3 11.5.3 GHSA-5wx6-mg75-v57r

References