Directory Traversal Affecting pnpm package, versions <11.11.0-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.63% (48th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-PNPM-19537772
  • published5 Sept 2026
  • disclosed31 Aug 2026

Introduced: 31 Aug 2026

CVE-2026-82393  (opens in a new tab)
CWE-22  (opens in a new tab)
CWE-73  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

Upgrade Minimos:latest pnpm to version 11.11.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pnpm package and not the pnpm package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

pnpm is a package manager. Prior to 10.34.5 and 11.11.0, pnpm accepts a scoped path traversal in a tarball dependency's package.json manifest name because pnpm11/resolving/npm-resolver/src/pickPackage.ts rejects slash characters only for unscoped names. During pnpm install, the unvalidated name reaches raw path joins in pnpm11/installing/deps-resolver/src/resolvePeers.ts, pnpm11/installing/deps-resolver/src/index.ts, and pnpm11/deps/graph-builder/src/lockfileToDepGraph.ts, causing package extraction outside node_modules and allowing attacker-controlled files to overwrite arbitrary filesystem paths even when --ignore-scripts is used. The overwrite can replace shell startup files, Git hooks, or installed package code and lead to code execution. This issue is fixed in versions 10.34.5, and 11.11.0.

CVSS Base Scores

version 3.1