CVE-2026-24053
MEDIUM
GHSA-q728-gf8j-w49r
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Lifecycle Timeline
3Description
Claude Code is an agentic coding tool. Prior to version 2.0.74, due to a Bash command validation flaw in parsing ZSH clobber syntax, it was possible to bypass directory restrictions and write files outside the current working directory without user permission prompts. Exploiting this required the user to use ZSH and the ability to add untrusted content into a Claude Code context window. This issue has been patched in version 2.0.74.
Analysis
Claude Code versions prior to 2.0.74 allow authenticated users to write files outside designated directories by exploiting inadequate Bash command validation in ZSH clobber syntax parsing. An attacker with the ability to inject malicious content into a Claude Code context window on a ZSH-based system can bypass file restrictions and achieve unauthorized file writes without triggering user permission prompts. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Review file handling controls.
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External POC / Exploit Code
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