CVE-2026-49956

Description

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 retrieve session titles and transcript message content from profiles other than their own active profile.

References

• https://github.com/nesquena/hermes-webui/commit/2c7b530071bb29ae4184e83e33be5799d529568e
• https://github.com/nesquena/hermes-webui/pull/3646
• https://github.com/nesquena/hermes-webui/pull/3672
• https://github.com/nesquena/hermes-webui/releases/tag/v0.51.269
• https://www.vulncheck.com/advisories/hermes-webui-profile-isolation-bypass-via-sessions-search