TI-2026-40213 Aliases CVE-2026-55699 GHSA-4gxm-v5v7-fqc4

pnpm: reserved bin name deletes PNPM_HOME during global remove

MEDIUM 62CWE-22Published 2026-06-25 · Updated 2026-06-25

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Partial Red Hat: 4 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-22 and the CVSS impact.

Summary

pnpm is a package manager. Prior to 10.34.2 and 11.5.3, Manifest bin object keys such as "", ".", and ".." passed pnpm's bin-name guard. When a malicious package was installed globally, later global remove, update, or add-replacement flows could re-derive those names from the installed manifest and pass path.join(globalBinDir, binName) to removeBin. For "." this targets the global bin directory; for ".." this targets its parent. 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 0.0045 39th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Partial pnpm (pnpm): 10.34.2, 11.5.3pnpm (npm): 10.34.2, 11.5.3Red Hat: 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
pnpm	pnpm	before 10.34.2; 11.0.0 to before 11.5.3	10.34.2, 11.5.3	Patch available	CNA
—	pnpm (npm)	before 10.34.2	10.34.2	Patch available	GHSA-4gxm-v5v7-fqc4
—	pnpm (npm)	11.0.0 to before 11.5.3	11.5.3	Patch available	GHSA-4gxm-v5v7-fqc4

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-4gxm-v5v7-fqc4
pnpm (npm) Vendor— Affected 11.0.0 to before 11.5.3 Fixed in 11.5.3 Patch available GHSA-4gxm-v5v7-fqc4

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:pnpm:pnpm::::::node.js::*	before 10.34.2; 11.0.0 to before 11.5.3	Vulnerable	pnpm

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-4gxm-v5v7-fqc4 pnpm (npm) Fixed in 10.34.2 Advisory →
Fix · GHSA-4gxm-v5v7-fqc4 pnpm (npm) Fixed in 11.5.3 Advisory →

Vendor assessments

Red Hat

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

Product	Status	Plan or fix
Red Hat AMQ Broker 7	Affected	No fix yet: Fix deferred
Red Hat Build of Keycloak	Affected	No fix yet: Fix deferred
Red Hat JBoss Enterprise Application Platform 8	Affected	No fix yet: Fix deferred
Red Hat JBoss Enterprise Application Platform Expansion Pack	Affected	No fix yet: Fix deferred

Timeline

2026-10-02 Threatist record created from CVE-2026-55699
2026-10-03 Alias added: GHSA-4gxm-v5v7-fqc4

References

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-2026-40211 pnpm: Repository-controlled configDependencies can select a pacquet native install engine 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

See all 27 →

Sources

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