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_summary/show_file_diff. The manipulation results in os command injection. The attack must be initiated from a local position. The exploit has been made public and could be used. This product operates on a rolling release basis, ensuring continuous delivery. Consequently, there are no version details for either affected or updated releases. It is advisable to implement a patch to correct this issue. The vendor was contacted early about this disclosure but did not respond in any way.

• CWE-77
• CWE-78

• https://github.com/sigmade/Git-MCP-Server/
• https://github.com/sigmade/Git-MCP-Server/issues/1
• https://github.com/sigmade/Git-MCP-Server/pull/2
• https://github.com/user-attachments/files/24855745/Git-MCP-Server.bug.pdf
• https://vuldb.com/?ctiid.352045
• https://vuldb.com/?id.352045
• https://vuldb.com/?submit.773796

Published

Mar 20, 2026

Last Modified

Jun 17, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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