{"id":"CVE-2026-4496","summary":"sigmade Git-MCP-Server gitUtils.ts child_process.exec os command injection","details":"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.","modified":"2026-10-08T02:50:54.344423380Z","published":"2026-03-20T18:32:13.041Z","database_specific":{"cna_assigner":"VulDB","cwe_ids":["CWE-77","CWE-78"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4496.json"},"references":[{"type":"WEB","url":"https://github.com/sigmade/Git-MCP-Server/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4496.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4496"},{"type":"ADVISORY","url":"https://vuldb.com/?id.352045"},{"type":"ADVISORY","url":"https://vuldb.com/?submit.773796"},{"type":"REPORT","url":"https://github.com/sigmade/Git-MCP-Server/issues/1"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.352045"},{"type":"FIX","url":"https://github.com/sigmade/Git-MCP-Server/pull/2"},{"type":"EVIDENCE","url":"https://github.com/user-attachments/files/24855745/Git-MCP-Server.bug.pdf"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sigmade/git-mcp-server","events":[{"introduced":"785aa159f262a02d5791a5d8a8e13c507ac42880"},{"last_affected":"785aa159f262a02d5791a5d8a8e13c507ac42880"}]}],"versions":["785aa159f262a02d5791a5d8a8e13c507ac42880"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-4496.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"}]}