CVE-2026-49956
Hermes WebUI < 0.51.269 Profile Isolation Bypass via sessions search
- State
- Published
- Severity
- 7.1 High
- Published
- Jun 9, 2026
- Updated
- Jul 14, 2026
- Reserved
- Jun 2, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
hermes-webuinesquena |
|
References
- https://github.com/nesquena/hermes-webui/releases/tag/v0.51.269release-notes
- https://github.com/nesquena/hermes-webui/pull/3646issue-tracking
- https://github.com/nesquena/hermes-webui/pull/3672issue-tracking
- https://github.com/nesquena/hermes-webui/commit/2c7b530071bb29ae4184e83e33be5799d529568epatch
- https://www.vulncheck.com/advisories/hermes-webui-profile-isolation-bypass-via-sessions-searchthird-party-advisory
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