Improper Verification of Cryptographic Signature in pnpm - #VU153385
Published: October 6, 2026
Vulnerability identifier: #VU153385
CSH Severity: Low
CVSS v4: 4.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-347
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to bypass signature verification tied to lockfile integrity.
The vulnerability exists due to improper signature verification in pnpm audit signatures when verifying packages against the integrity recorded in a lockfile. A local user can supply a lockfile with missing or mismatched package integrity to bypass signature verification tied to lockfile integrity.
Affected software
pnpm
Remediation
Install security update from vendor's website.
pnpm - addressed in versions 11.28.5, 12.10.0