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TI-2026-40211 Aliases CVE-2026-55697GHSA-gj8w-mvpf-x27x

pnpm: Repository-controlled configDependencies can select a pacquet native install engine

Priority HIGH 73CWE-494Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-494.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00191 8th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed pnpm (pnpm): 10.34.2, 11.5.3pnpm (npm): 10.34.2, 11.5.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
pnpmpnpmbefore 10.34.2; 11.0.0 to before 11.5.310.34.2, 11.5.3Patch availableCNA
—pnpm (npm)before 10.34.210.34.2Patch availableGHSA-gj8w-mvpf-x27x
—pnpm (npm)11.0.0 to before 11.5.311.5.3Patch availableGHSA-gj8w-mvpf-x27x
  • pnpm Vendorpnpm Affected before 10.34.2; 11.0.0 to before 11.5.3 Fixed in 10.34.2, 11.5.3 Patch available CNA
  • pnpm (npm) Vendor— Affected before 10.34.2 Fixed in 10.34.2 Patch available GHSA-gj8w-mvpf-x27x
  • pnpm (npm) Vendor— Affected 11.0.0 to before 11.5.3 Fixed in 11.5.3 Patch available GHSA-gj8w-mvpf-x27x

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:pnpm:pnpm:*:*:*:*:*:node.js:*:*before 10.34.2; 11.0.0 to before 11.5.3Vulnerablepnpm
  • cpe:2.3:a:pnpm:pnpm:*:*:*:*:*:node.js:*:* Versions before 10.34.2; 11.0.0 to before 11.5.3 Vulnerable ·pnpm

Remediation

  • Fix · CNA pnpm (pnpm) Fixed in 10.34.2, 11.5.3
  • Fix · GHSA-gj8w-mvpf-x27x pnpm (npm) Fixed in 10.34.2 Advisory →
  • Fix · GHSA-gj8w-mvpf-x27x pnpm (npm) Fixed in 11.5.3 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 4 products
  • Red Hat AMQ Broker 7
  • Red Hat Build of Keycloak
  • Red Hat JBoss Enterprise Application Platform 8
  • Red Hat JBoss Enterprise Application Platform Expansion Pack

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-55697
  2. 2026-10-03 Alias added: GHSA-gj8w-mvpf-x27x

References

Exploit 1

Advisory 1

Other 1

  • TI-2025-42715 pnpm v10+ Bypass "Dependency lifecycle scripts execution disabled by default" CVSS 3.1CRITICAL 9.8
  • TI-2023-19086 pnpm incorrectly parses tar archives relative to specification CVSS 3.1CRITICAL 9.8
  • TI-2026-40212 pnpm: Project env lockfile can short-circuit package-manager resolution and execute lockfile-selected pnpm bytes CVSS 3.1HIGH 8.8
  • TI-2026-40042 pnpm: manifest identity spoof satisfies allowBuilds and runs attacker lifecycle CVSS 3.1HIGH 8.8
  • TI-2026-36842 pnpm: Transitive dependency alias path traversal allows project path override via symlink replacement CVSS 3.1HIGH 8.8
  • TI-2025-42714 pnpm Lockfile Integrity Bypass Allows Remote Dynamic Dependencies CVSS 3.1HIGH 8.8
See all 27 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences