What is CVE-2026-31862?

CVE-2026-31862 is a critical-severity vulnerability in Cloudcli Cloud Cli, classified under OS Command Injection. CVSS score: 9.1/10. Published 2026-03-11.

How severe is CVE-2026-31862?

Critical severity. CVSS v3 base score is 9.1 out of 10.

RCE in Cloudcli Cloud Cli

CVE-2026-31862

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, multiple Git-related API endpoints use execAsync() with string interpolation of user-controlled parameters (file, branch, message, commit), allowing authenticated attackers to execute arbitrary OS commands. This vulnerability is fixed in 1.24.0.

Vulnerability class: Command Injection (OS Command Injection)

Published 2026-03-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (45.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.001

Affected products

Cloudcli Cloud Cli
Siteboon Claudecodeui — versions < 1.24.0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

github.com/siteboon/claudecodeui/security/advisories/GHSA-f2fc-vc88-6w7q (Vendor Advisory)
github.com/siteboon/claudecodeui/releases/tag/v1.24.0 (Release Notes)

Frequently asked questions

What is CVE-2026-31862?: CVE-2026-31862 is a critical-severity vulnerability in Cloudcli Cloud Cli, classified under OS Command Injection. CVSS score: 9.1/10. Published 2026-03-11.
How severe is CVE-2026-31862?: Critical severity. CVSS v3 base score is 9.1 out of 10.