{"id":"CVE-2026-86063","revision":"58661180fa1e4b29a3ddb0a7e81827a4","records":[{"revision":"58661180fa1e4b29a3ddb0a7e81827a4","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-86063","aliases":[],"title":"Claude Code: Plugin Hash Pin Bypass Allows Bypass of Hash Pinning","description":"Claude Code is an agentic coding tool. Prior to 2.1.179, the Claude Code and Claude Desktop plugin installation flow runs git checkout for a marketplace-pinned commit without verifying that the resulting HEAD equals the pinned 40-character SHA. An attacker who controls a plugin repository on a Git host that permits SHA-shaped branch names can create a branch named after the reviewed commit, causing checkout to select the branch tip and install attacker-controlled plugin code. Exploitation requires a user to install the malicious plugin and pin it to the ostensibly safe hash. This issue is fixed in version 2.1.179.","state":0,"publishedAt":"2026-10-13T19:04:11.695+00:00","modifiedAt":"2026-10-13T20:21:00.156+00:00","affected":[{"ecosystem":"Vendor product","name":"claude-code","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"anthropics\",\n                    \"product\": \"claude-code\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 2.1.179\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":7.5,"severity":"HIGH"}],"references":["https://github.com/anthropics/claude-code/security/advisories/GHSA-pq7j-f95f-qfcv","https://github.com/anthropics/claude-code/releases/tag/v2.1.179"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-86063","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-86063","identifiers":["CVE-2026-86063"]},"retained":false,"historicalAffected":[]}],"coverage":[]}