Is @anthropic-ai/claude-code affected by CVE-2026-35603?

npm @anthropic-ai/claude-code is affected in <2.1.75.

Is CVE-2026-35603 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.1%.

medium

CVE-2026-35603

Q: Is CVE-2026-35603 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.1%.

npm · @anthropic-ai/claude-code

Summary

Claude Code: Insecure System-Wide Configuration Loading Enables Local Privilege Escalation on Windows

Severity: medium
EPSS: 0.1% (p1)
Also known as: GHSA-5cwg-9f6j-9jvx
Published: 2026-04-17

References

https://github.com/anthropics/claude-code/security/advisories/GHSA-5cwg-9f6j-9jvx
https://nvd.nist.gov/vuln/detail/CVE-2026-35603
https://github.com/anthropics/claude-code

Related advisories

CVE-2026-40068 — high · npm/@anthropic-ai/claude-code
CVE-2026-39861 — high · npm/@anthropic-ai/claude-code
AI-CLAUDECODE-SOURCEMAP-2026 — high · npm/@anthropic-ai/claude-code
CVE-2026-54316 — medium · npm/@anthropic-ai/claude-code

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.