CVE-2026-50014: pnpm: Git Fetch Argument Injection via Lockfile resolution.commit

Severity: high (CVSS 7.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-06-25 · updated 2026-06-29
Weakness: CWE-88

Description

pnpm is a package manager. Prior to 10.34.0 and 11.4.0, pnpm passes the lockfile-controlled git resolution.commit value to git fetch without a -- separator or commit-format validation. For git dependencies fetched through the shallow-fetch path, a malicious lockfile can replace the expected 40-character commit hash with a Git option such as --upload-pack=<command>. For SSH and local transports, --upload-pack can execute the supplied command. HTTPS transports ignore --upload-pack, so the practical attack surface is primarily SSH or local git dependencies. This vulnerability is fixed in 10.34.0 and 11.4.0.

Affected products

pnpm: before 10.34.0; from 11.0.0 before 11.4.0 — fixed in 10.34.0, 11.4.0

How to fix

Upgrade to a fixed version: pnpm 10.34.0, 11.4.0. Check the vendor advisory for mitigations.

References

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