CVE-2026-53871 Hermes WebUI < 0.51.368 - Profile-Scoped Authorization Bypass via Forged hermes_profile Cookie

Hermes WebUI before 0.51.368 contains an authorization bypass vulnerability in the getprofilecookie function that accepts unauthenticated profile names from the hermesprofile cookie. An authenticated attacker can forge the hermesprofile cookie value to bypass profile-scoped authorization checks a...

CVE-2026-53871 Hermes WebUI < 0.51.368 - Profile-Scoped Authorization Bypass via Forged hermes_profile Cookie

Hermes WebUI before 0.51.368 contains an authorization bypass vulnerability in the getprofilecookie function that accepts unauthenticated profile names from the hermesprofile cookie. An authenticated attacker can forge the hermesprofile cookie value to bypass profile-scoped authorization checks a...

CVE-2026-53870 Hermes Agent < 0.16.0 - Sensitive File Permission Vulnerability in Store Files

Hermes Agent before 0.16.0 creates responsestore.db and webhooksubscriptions.json with world-readable permissions mode 0o644, exposing conversation history and HMAC secrets to local users. Attackers with local filesystem access can read these files directly to obtain sensitive data including...

CVE-2026-53869

CVE-2026-53869 : Hermes Agent prior to 0.16.0 has a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation. The FastAPI HTTP middleware is not executed for WebSocket upgrade requests on /api/pty, /api/ws, /api/pub, and /api/events, ena...

CVE-2026-53869 Hermes Agent < 0.16.0 - DNS Rebinding Bypass via WebSocket Endpoints

Hermes Agent before 0.16.0 contains a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation. FastAPI HTTP middleware does not execute for WebSocket upgrade requests on /api/pty, /api/ws, /api/pub, and /api/events endpoints, enabling...

PT-2026-50521

Name of the Vulnerable Software and Affected Versions Hermes WebUI versions prior to 0.51.409 Description An authentication bypass exists in passkey registration endpoints. When HERMES WEBUI PASSKEY=1 is enabled and no credentials exist, unauthenticated remote attackers can register arbitrary...

PT-2026-50518

Name of the Vulnerable Software and Affected Versions Hermes Agent versions prior to 0.16.0 Description A DNS rebinding issue in WebSocket endpoints allows remote attackers to bypass Host and Origin validation. This occurs because FastAPI HTTP middleware does not execute for WebSocket upgrade...

PT-2026-50519

Name of the Vulnerable Software and Affected Versions Hermes Agent versions prior to 0.16.0 Description The software creates response store.db and webhook subscriptions.json files with world-readable permissions mode 0o644. This configuration allows local users with filesystem access to read thes...

CVE-2026-49973

Hermes WebUI before version 0.51.358 contains an improper access control vulnerability that allows unauthenticated remote attackers to hijack initial setup by submitting the setpassword parameter to the settings API endpoint without any network origin restriction. Attackers on any reachable netwo...

CVE-2026-49973 Hermes WebUI < 0.51.358 Unauthenticated Password Takeover via /api/settings

Hermes WebUI before version 0.51.358 contains an improper access control vulnerability that allows unauthenticated remote attackers to hijack initial setup by submitting the setpassword parameter to the settings API endpoint without any network origin restriction. Attackers on any reachable netwo...

CVE-2026-49973

CVE-2026-49973 affects Hermes WebUI prior to version 0.51.358. The issue is an improper access control in the settings API that allows unauthenticated remote attackers to hijack the initial setup by posting to the /api/settings endpoint using the _set_password parameter without origin restriction...

EUVD-2026-36306

Hermes WebUI before version 0.51.358 contains an improper access control vulnerability that allows unauthenticated remote attackers to hijack initial setup by submitting the setpassword parameter to the settings API endpoint without any network origin restriction. Attackers on any reachable netwo...

CVE-2026-49973 Hermes WebUI < 0.51.358 Unauthenticated Password Takeover via /api/settings

Hermes WebUI before version 0.51.358 contains an improper access control vulnerability that allows unauthenticated remote attackers to hijack initial setup by submitting the setpassword parameter to the settings API endpoint without any network origin restriction. Attackers on any reachable netwo...

Hermes Web UI 访问控制错误漏洞

Hermes Web UI is a lightweight, dark-themed web interface developed by Nathan Esquenazi. Versions of Hermes Web UI prior to 0.51.358 contained an access control vulnerability. This vulnerability stemmed from improper access control measures, allowing unauthorized remote attackers to initial...

CVE-2026-49957

Hermes WebUI before version 0.51.296 contains a workspace boundary bypass vulnerability that allows authenticated attackers to circumvent blocked-root path checks by exploiting an early return in the SSH/remote terminal profile workspace resolution logic within remoteterminalworkspacecandidate...

CVE-2026-49955

Hermes WebUI before version 0.51.270 contains a resource exhaustion vulnerability that allows unauthenticated remote attackers to degrade service availability by repeatedly calling the passkey options endpoint without completing assertion. Attackers can send unlimited POST requests to the...

CVE-2026-49959

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...

CVE-2026-49956

Hermes WebUI before version 0.51.269 contains a profile isolation bypass vulnerability that allows authenticated users to access data belonging to other profiles by querying the session search endpoint without active-profile filtering. Attackers can send requests to the sessions search handler to...

EUVD-2026-35707

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...

EUVD-2026-35497

Hermes WebUI before version 0.51.269 contains a profile isolation bypass vulnerability that allows authenticated users to access data belonging to other profiles by querying the session search endpoint without active-profile filtering. Attackers can send requests to the sessions search handler to...