CVE-2026-101043
CVE-2026-101043 · pnpm 11.0.0 before 11.11.0 Environment Variable Exfiltration via Proxy Settings
This page contains facts from public vulnerability sources. Check the original advisory before updating.
pnpm versions 11.0.0 before 11.11.0 and 10.7.0 before 10.34.5 expand ${VAR} environment-variable placeholders in the httpProxy, httpsProxy, and noProxy settings read from a project's pnpm-workspace.yaml. Because the manifest is repository-controlled and the proxy keys were omitted from the request-destination key set that otherwise suppresses placeholder expansion for untrusted manifests (as already done for registry, pnprServer, registries and namedRegistries), an attacker who controls a repository's pnpm-workspace.yaml can cause a victim who clones the repository and runs a pnpm command (e.g. pnpm install) to expand environment secrets such as NPM_TOKEN or GITHUB_TOKEN into a proxy hostname or userinfo and route install traffic — and the corresponding DNS lookups — through an attacker-controlled host. The exfiltration occurs during configuration loading, before any lifecycle script executes. Fixed in pnpm 11.11.0 and 10.34.5.
CVSS 8.3 · High · EPSS 0.2% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
pnpm
- Versions
- ≥ 11.0.0, < 11.11.0: Affected (semver)
- 11.11.0: Not affected (semver)
Update to 11.11.0
pnpm
- Versions
- ≥ 10.7.0, < 10.34.5: Affected (semver)
- 10.34.5: Not affected (semver)
Update to 10.34.5
pnpm npm
- Affected ranges
- SEMVER: ≥ 11.0.0, < 11.11.0
Update to 11.11.0
pnpm npm
- Affected ranges
- SEMVER: ≥ 10.7.0, < 10.34.5
Update to 10.34.5