CVE-2026-55180
Last modified
CVE-2026-55180 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm and pacquet expanded ${ENV_VAR} placeholders from repository-controlled .npmrc and pnpm-workspace.yaml into registry request destinations and registry credentials. EPSS estimates a 0.21% chance of exploitation in the next 30 days.
Description
pnpm is a package manager. Prior to 10.34.2 and 11.5.3, pnpm and pacquet expanded ${ENV_VAR} placeholders from repository-controlled .npmrc and pnpm-workspace.yaml into registry request destinations and registry credentials. A malicious repository could cause dependency resolution to send victim environment secrets to an attacker-selected registry before lifecycle scripts run. This vulnerability is fixed in 10.34.2 and 11.5.3.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Pnpm | Pnpm | < 10.34.2 |
| Pnpm | Pnpm | >= 11.0.0, < 11.5.3 |
References
- https://github.com/pnpm/pnpm/security/advisories/GHSA-3qhv-2rgh-x77rExploit, Vendor Advisory
- https://github.com/pnpm/pnpm/security/advisories/GHSA-3qhv-2rgh-x77rExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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