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Vulnerability record · CVE-2026-31861 · published 11 March 2026

CVE-2026-31861: Cloudcli cloud cli code injection vulnerability

CCloudcli · Cloud Cli

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.

8.7 CVSS 4.0 High EPSS 0.68% · top 49.6% CWE-94 · Code injection
8.7CVSS 4.0 base score
0.68%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/siteboon/claudecodeui/commit/86c33c1c0cb34176725a38f46960213714fc3e04 Patch
https://github.com/siteboon/claudecodeui/releases/tag/v1.24.0 Release Notes
https://github.com/siteboon/claudecodeui/security/advisories/GHSA-7fv4-fmmc-86g2 ExploitVendor Advisory
https://github.com/siteboon/claudecodeui/security/advisories/GHSA-7fv4-fmmc-86g2 ExploitVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-31861), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.