CVE-2026-49958

Hermes WebUI is affected by a TOCTOU race in git_discard (api/workspace_git.py) prior to version 0.51.303. An attacker can replace a validated path component with a symlink between safe_resolve_ws() and the subsequent Path.unlink() or shutil.rmtree() call, causing the delete operation to follow t...

CVE-2026-49958 Hermes WebUI < 0.51.303 TOCTOU Race Condition via git_discard

Hermes WebUI before version 0.51.303 contains a time-of-check time-of-use TOCTOU race condition vulnerability in the gitdiscard function within api/workspacegit.py that allows attackers to delete files outside the configured workspace boundary by replacing a validated path component with a symlin...

CVE-2026-49958 Hermes WebUI < 0.51.303 TOCTOU Race Condition via git_discard

Hermes WebUI before version 0.51.303 contains a time-of-check time-of-use TOCTOU race condition vulnerability in the gitdiscard function within api/workspacegit.py that allows attackers to delete files outside the configured workspace boundary by replacing a validated path component with a symlin...

CVE-2026-49957 Hermes WebUI < 0.51.296 Workspace Boundary Bypass via api/workspace.py

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-2026-49957 Hermes WebUI < 0.51.296 Workspace Boundary Bypass via api/workspace.py

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-2026-49957

CVE-2026-49957 : Hermes WebUI prior to 0.51.269 contains a workspace boundary bypass. An authenticated attacker can exploit an early return in the SSH/remote terminal profile workspace resolution logic (in _remote_terminal_workspace_candidate()) by configuring a remote terminal working directory ...

CVE-2026-49957 Hermes WebUI < 0.51.296 Workspace Boundary Bypass via api/workspace.py

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-2026-49956

CVE-2026-49956 affects the Hermes WebUI prior to version 0.51.269. The root cause is a profile isolation bypass: an authenticated user can query the sessions search endpoint without active-profile filtering, exposing data from other profiles (session titles and transcript message content). This i...

CVE-2026-49956 Hermes WebUI < 0.51.269 Profile Isolation Bypass via sessions search

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...

CVE-2026-49956 Hermes WebUI < 0.51.269 Profile Isolation Bypass via sessions search

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...

CVE-2026-49956 Hermes WebUI < 0.51.269 Profile Isolation Bypass via sessions search

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...

CVE-2026-49955 Hermes WebUI < 0.51.270 Resource Exhaustion via passkey/options

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-2026-49955 Hermes WebUI < 0.51.270 Resource Exhaustion via passkey/options

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-2026-49955

Hermes WebUI vulnerable before version 0.51.270 to resource exhaustion via the passkey/options endpoint. Unauthenticated remote attackers can degrade availability by repeatedly posting to the authentication endpoint, causing unbounded growth of the challenge store and high CPU/disk I/O due to rep...

CVE-2026-49955 Hermes WebUI < 0.51.270 Resource Exhaustion via passkey/options

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-2026-11461

A vulnerability has been found in NousResearch hermes-agent up to 0.12.0. This affects the function resolvesessionbytitle of the file hermesstate.py of the component resume Endpoint. Such manipulation of the argument Title leads to authorization bypass. It is possible to launch the attack remotel...

PT-2026-47853

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...

PT-2026-48119

Name of the Vulnerable Software and Affected Versions Hermes WebUI versions prior to 0.51.296 Description An authenticated attacker can bypass workspace boundary checks by exploiting an early return in the SSH/remote terminal profile workspace resolution logic within the remote terminal workspace...

Hermes Web UI 路径遍历漏洞

Hermes Web UI is a lightweight, dark-themed web interface developed by Nathan Esquenazi. Versions of Hermes Web UI prior to 0.51.269 contained a path traversal vulnerability. This vulnerability stemmed from an issue with bypassing workspace boundaries, which could allow authentication attackers t...

CVE-2026-49959: Improper Neutralization of Special Elements used in an OS Command

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...