CVE-2026-49959High· 8.8▾ TwilightHermes 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…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0.2 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.9%
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/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.
hermes-webui < 0.51.311Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-22677Medium· 6.5Hermes WebUI < 0.51.44 Path Traversal via Session Import Endpoint
CVE-2026-49956Medium· 6.5Hermes WebUI < 0.51.269 Profile Isolation Bypass via sessions search
CVE-2026-49957High· 7.7Hermes WebUI < 0.51.296 Workspace Boundary Bypass via api/workspace.py
CVE-2026-49955Medium· 5.3Hermes WebUI < 0.51.270 Resource Exhaustion via passkey/options
CVE-2026-49958Medium· 5.0Hermes WebUI < 0.51.303 TOCTOU Race Condition via git_discard
CVE-2026-49973Critical· 9.4Hermes WebUI < 0.51.358 Unauthenticated Password Takeover via /api/settings