RCE in Hiraishikentaro Wezterm-Mcp
CVE-2026-10279
A vulnerability was identified in hiraishikentaro wezterm-mcp 0.1.0. The affected element is an unknown function of the file src/wezterm_executor.ts of the component switch_pane/write_to_specific_pane. The manipulation of the argument request.params.arguments.pane_id leads to os command injection. The attack can be initiated remotely. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.011 (64.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Hiraishikentaro Wezterm-Mcp — versions 0.1.0
Weakness classification (CWE)
References
- vuldb.com/vuln/367572 (technical-description, vdb-entry)
- vuldb.com/vuln/367572/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-10279 (third-party-advisory)
- vuldb.com/submit/825419 (third-party-advisory)
- github.com/hiraishikentaro/wezterm-mcp/issues/7 (issue-tracking, exploit)
- github.com/hiraishikentaro/wezterm-mcp/ (product)
Frequently asked questions
- What is CVE-2026-10279?
- CVE-2026-10279 is a medium-severity vulnerability in Hiraishikentaro Wezterm-Mcp, classified under Command Injection. CVSS score: 6.3/10. Published 2026-06-01.
- How severe is CVE-2026-10279?
- Medium severity. CVSS v3 base score is 6.3 out of 10.