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  4. CVE 2026 50573 pnpm unsafe default behavior breaks integrity
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Back to active CVEs
Medium · CVSS 6.8CVE-2026-50573GHSA-54HH-G5MX-JQCP

pnpm: Unsafe default behavior breaks integrity checkCVE-2026-50573

Answer in brief

CVE-2026-50573 records a Medium severity (CVSS 6.8) vulnerability in pnpm: Unsafe default behavior breaks integrity check. The current sources do not mark it as known exploited. The current feed maps pnpm/pnpm (generic), pnpm (npm), pnpm (npm), pnpm (npm) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jun 25, 2026Updated Nov 3, 2026Source checked Nov 3, 2026First seen by HOL Jun 25, 2026Material review Nov 3, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.8
Exploitation
Not marked as known exploited
Affected software
5 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 6.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps pnpm/pnpm (generic), pnpm (npm), pnpm (npm), pnpm (npm) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
pnpm/pnpmgeneric<10.33.4 || >=11.0.0 <11.4.010.33.4, 11.4.0
pnpmnpm<10.34.010.34.0
pnpmnpm>=11.0.0,<11.4.011.4.0
pnpmnpm>=0 <10.34.010.34.0
pnpmnpm>=11.0.0 <11.4.011.4.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for pnpm/pnpm, pnpm, pnpm.
  2. 2Review the reported fix. Update pnpm/pnpm to 10.33.4; pnpm to 10.34.0; pnpm to 11.4.0; pnpm to 10.34.0; pnpm to 11.4.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jun 25, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 3, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Jun 25, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • NVD vulnerability recordnvd.nist.gov
  • GitHub security advisorygithub.com
Upstream source description

pnpm is a package manager. Prior to 10.34.0 and 11.4.0, `pnpm install` in non-frozen mode can accept new remote package content after detecting that the downloaded tarball does not match the integrity recorded in pnpm-lock.yaml. When a package is already locked with an integrity value, and the registry later serves different metadata and tarball content for the same package name and version, pnpm initially reports an integrity mismatch. However, plain pnpm install then performs a resolution repair, accepts the registry's new integrity, updates the lockfile, installs the new content, and exits successfully. This means the lockfile integrity check does not act as a hard stop by default. This vulnerability is fixed in 10.34.0 and 11.4.0.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Emerson Ovation Insufficient Verification of Data AuthenticityAlso CWE-345

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-345
Source
CVE List V5
Source checked
Nov 3, 2026
References
4 linked sources
Open source record