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

影響: npm:@anthropic-ai/claude-code < 2.1.179 → 2.1.179

The plugin install flow in Claude Code and Claude Desktop checked out a marketplace's pinned commit SHA using git checkout without verifying that the resulting HEAD matched the pinned SHA. An attacker controlling a plugin's upstream repository could create a branch named identically to the pinned 40-character SHA, causing the checkout to silently resolve to the attacker's branch tip instead of the reviewed commit, resulting in attacker-controlled code being installed bypassing the pinned hash.…

GitHub Advisory Databaseで読む

2026/10/16 05:22、GitHub Advisory Databaseが「Claude Code: Plugin Hash Pin Bypass Allows Bypass of Hash Pinning」を公開しました (種別: 脆弱性アドバイザリ)。重大度は「重要」(high) です。関連する技術: JavaScript / Node.js、Anthropic (Claude)。CVE: CVE-2026-86063。