CVE-2026-31975 details a critical OS Command Injection vulnerability in Cloud CLI (aka Claude Code UI) versions prior to 1.25.0. This flaw allows arbitrary operating system command execution due to unsanitized `projectPath`, `initialCommand`, and `sessionId` values within WebSocket messages. Rated 9.8 Critical (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), it can be exploited remotely without authentication or user interaction, leading to full compromise of confidentiality, integrity, and availability. While no public exploit code is currently available and it is not yet listed in CISA's KEV catalog, this CVE is on a "Hot List," indicating high risk and potential for future exploitation. The vulnerability has received some community attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.25.0CPE matchmatch criteria | cpe:2.3:a:cloudcli:cloud_cli:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
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:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.