Arbitrary Code Injection Affecting @siteboon/claude-code-ui package, versions <1.24.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published15 Mar 2026
- disclosed10 Mar 2026
- creditRoberto Nunes, neo-ai-engineer
Introduced: 10 Mar 2026
NewCVE-2026-31861 (opens in a new tab)How to fix?
Upgrade @siteboon/claude-code-ui to version 1.24.0 or higher.
Overview
@siteboon/claude-code-ui is an A web-based UI for Claude Code CLI
Affected versions of this package are vulnerable to Arbitrary Code Injection in the git-config endpoint due to improper sanitization of user-supplied input in shell command construction. An attacker can execute arbitrary OS commands as the server process user by injecting malicious values into the gitName or gitEmail parameters.