Bug 2493038 (CVE-2026-55697)

Summary:	CVE-2026-55697 pnpm: pnpm: Arbitrary code execution via improper handling of config dependencies
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	anujha, aschwart, asoldano, aszczucz, ataylor, bbaranow, bmaxwell, boliveir, bstansbe, dbruscin, dlofthou, drichtar, ehugonne, istudens, ivassile, iweiss, kvanderr, mosmerov, mposolda, msvehla, nwallace, pberan, pesilva, pjindal, pmackay, rmartinc, rstancel, ssilvert, sthorger, thjenkin, vdosoudi, vmuzikar
Target Milestone:	---	Keywords:	Security
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Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in pnpm, a package manager. A remote attacker could exploit this vulnerability by crafting a malicious repository that declares a configDependency in its pnpm-workspace.yaml file. When a user installs packages from this repository, pnpm improperly treats the declared dependency as an install-engine opt-in, leading to the execution of a malicious binary. This allows for arbitrary code execution on the system of the developer or continuous integration (CI) user.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
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Description OSIDB Bzimport 2026-06-25 18:02:57 UTC

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm can install configDependencies declared in pnpm-workspace.yaml before command dispatch. Before the patch, a repository could declare pacquet or @pnpm/pacquet as a config dependency and pnpm treated that repository-controlled dependency as an install-engine opt-in. During install, pnpm resolved a platform-specific @pacquet/<platform>-<arch>/pacquet binary from node_modules/.pnpm-config/<packageName> and spawned it as the developer or CI user. This vulnerability is fixed in 10.34.2 and 11.5.3.