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TI-2026-56809 Aliases CVE-2026-82392GHSA-c59q-g84q-2gj5

pnpm: Virtual store linker path traversal via unvalidated depPath name in lockfileToDepGraph

Priority LOW 32CWE-22Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

pnpm is a package manager. Prior to 10.34.5 and from 11.0.0 until 11.11.0, pnpm parses the package name from attacker-controlled pnpm-lock.yaml packages keys with dp.parse(depPath).name and uses it without validation in deps/graph-builder/src/lockfileToDepGraph.ts and pnpm11/deps/graph-builder/src/lockfileToDepGraph.ts. The name reaches path.join(modules, pkgName), storeController.importPackage, and pnpm11/lockfile/to-pnp/src/index.ts, allowing package contents to be written outside node_modules when a user runs pnpm install. When dangerouslyAllowAllBuilds or a matching allowBuilds entry permits lifecycle scripts, the escaped package can execute code with the user's privileges. This issue is fixed in versions 10.34.5 and 11.11.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00615 49th percentileScored 2026-11-07
Fix Fixed pnpm (pnpm): 10.34.5, 11.11.0pnpm (npm): 10.34.5, 11.11.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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

VendorProductAffected versionsFixed inStatusSource
pnpmpnpmbefore 10.34.5; 11.0.0 to before 11.11.010.34.5, 11.11.0Patch availableCNA
—pnpm (npm)before 10.34.510.34.5Patch availableGHSA-c59q-g84q-2gj5
—pnpm (npm)11.0.0 to before 11.11.011.11.0Patch availableGHSA-c59q-g84q-2gj5
  • pnpm Vendorpnpm Affected before 10.34.5; 11.0.0 to before 11.11.0 Fixed in 10.34.5, 11.11.0 Patch available CNA
  • pnpm (npm) Vendor— Affected before 10.34.5 Fixed in 10.34.5 Patch available GHSA-c59q-g84q-2gj5
  • pnpm (npm) Vendor— Affected 11.0.0 to before 11.11.0 Fixed in 11.11.0 Patch available GHSA-c59q-g84q-2gj5

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:pnpm:pnpm:*:*:*:*:*:*:*:*——pnpm
  • cpe:2.3:a:pnpm:pnpm:*:*:*:*:*:*:*:* Versions — — ·pnpm

Remediation

  • Fix · CNA pnpm (pnpm) Fixed in 10.34.5, 11.11.0
  • Fix · GHSA-c59q-g84q-2gj5 pnpm (npm) Fixed in 10.34.5 Advisory →
  • Fix · GHSA-c59q-g84q-2gj5 pnpm (npm) Fixed in 11.11.0 Advisory →

Vendor assessments

Red Hat

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

Not affected: 5 products
  • Red Hat AMQ Broker 7
  • Red Hat Build of Keycloak
  • Red Hat Hardened Images
  • 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-2026-82392
  2. 2026-10-03 Alias added: GHSA-c59q-g84q-2gj5

References

Advisory 1

Other 8

  • 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 31 →

Sources

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