CVE-2026-31861
This allows authenticated attackers to execute arbitrary OS commands via the git configuration endpoint.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.03%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Cloud CLI (aka Claude Code UI) is a desktop and mobile UI for Claude Code, Cursor CLI, Codex, and Gemini-CLI. Prior to 1.24.0, The /api/user/git-config endpoint constructs shell commands by interpolating user-supplied gitName and gitEmail values into command strings passed to child_process.exec(). The input is placed within double quotes and only " is escaped, but backticks (`), $() command substitution, and \ sequences are all interpreted within double-quoted strings in bash. This allows authenticated attackers to execute arbitrary OS commands via the git configuration endpoint. This vulnerability is fixed in 1.24.0.
- CVSS 4.0
- 8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 6.03% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- cloudcli/cloud cli
- Source
- security-advisories@github.com
References
- https://github.com/siteboon/claudecodeui/commit/86c33c1c0cb34176725a38f46960213714fc3e04Patch
- https://github.com/siteboon/claudecodeui/releases/tag/v1.24.0Release Notes
- https://github.com/siteboon/claudecodeui/security/advisories/GHSA-7fv4-fmmc-86g2Exploit, Vendor Advisory
- https://github.com/siteboon/claudecodeui/security/advisories/GHSA-7fv4-fmmc-86g2Exploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.