RCE in Sigmade Git-mcp-server
CVE-2026-4496
A vulnerability was found in sigmade Git-MCP-Server up to 785aa159f262a02d5791a5d8a8e13c507ac42880. Affected by this vulnerability is the function child_process.exec of the file src/gitUtils.ts of the component show_merge_diff/quick_merge_…
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.003 (55.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Sigmade Git-mcp-server — versions 785aa159f262a02d5791a5d8a8e13c507ac42880
Weakness classification (CWE)
References
- VDB-352045 | sigmade Git-MCP-Server gitUtils.ts child_process.exec os command injection (technical-description, vdb-entry)
- VDB-352045 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
- Submit #773796 | sigmade Git-MCP-Server <=1.0.0 Command Injection (third-party-advisory)
- cna@vuldb.com (issue-tracking)
- cna@vuldb.com (exploit)
- cna@vuldb.com (issue-tracking, patch)
- cna@vuldb.com (product)
Frequently asked questions
- What is CVE-2026-4496?
- CVE-2026-4496 is a medium-severity vulnerability in Sigmade Git-mcp-server, classified under Command Injection. CVSS score: 5.3/10. Published 2026-03-20.
- How severe is CVE-2026-4496?
- Medium severity. CVSS v3 base score is 5.3 out of 10.