Claude Code: Plugin Hash Pin Bypass Allows Bypass of Hash Pinning

Date Oct 15, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product npm ยท @anthropic-ai/claude-code
CVE CVE-2026-86063
High-risk advisory CVE-2026-86063

Summary

Claude Code: Plugin Hash Pin Bypass Allows Bypass of Hash Pinning

Why it matters

GitHub has published a reviewed security advisory for @anthropic-ai/claude-code. Prioritize it with other application dependency updates, especially because EPSS places it in the 6% percentile.

Operator check

Check whether @anthropic-ai/claude-code is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 7.5. EPSS probability: 0.2%; percentile: 6%.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.