{"id":"CVE-2026-49959","title":"Hermes WebUI < 0.51.311 RCE via Git Configuration Injection","summary":"Hermes WebUI before version 0.51.311 contains a remote code execution vulnerability that allows authenticated attackers to execute arbitrary commands by placing malicious executable Git configuration in a workspace repository's .git/conf…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-78"],"vendor":"nesquena","product":"hermes-webui","affected":["hermes-webui < 0.51.311"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-06-10T13:49:28.044885Z"},"published":"2026-06-09","updated":"2026-11-08","sourceUpdated":"2026-11-08T14:05:00.139Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-49959","references":[{"url":"https://github.com/nesquena/hermes-webui/releases/tag/v0.51.311","label":"hermes-webui 0.51.311 Release Notes"},{"url":"https://github.com/nesquena/hermes-webui/pull/3776"},{"url":"https://github.com/nesquena/hermes-webui/commit/938ac9f55b53def1eefb48c4c42dabaf9c22e99c"},{"url":"https://www.vulncheck.com/advisories/hermes-webui-rce-via-git-configuration-injection"}],"tags":["cve.org"],"epss":0.00945,"epssPercentile":0.61312,"ingestedAt":"2026-11-08T14:51:22.381Z","slug":"CVE-2026-49959","body":"## Overview\n\nHermes WebUI before version 0.51.311 contains a remote code execution vulnerability that allows authenticated attackers to execute arbitrary commands by placing malicious executable Git configuration in a workspace repository's .git/config file. Attackers can exploit Git subprocess invocations in api/workspace_git.py through vectors such as core.fsmonitor during git status, protocol.ext.allow with ext:: remotes during git fetch, credential.helper, core.askPass, core.gitProxy, or inherited environment variables including GIT_SSH_COMMAND to achieve arbitrary command execution on the host running the application.\n\n## Affected\n\n- `hermes-webui < 0.51.311`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}