CVE-2026-49956 Details
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.
A profile isolation bypass vulnerability has been identified in Hermes WebUI versions prior to 0.51.269. This vulnerability allows authenticated users to access data from other profiles by querying the session search endpoint without proper active-profile filtering. As a result, users can retrieve session titles and transcript messages from profiles other than their own active profile.
Users can update to Hermes WebUI version 0.51.269 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 9, 2026CISA-ADP
Assessed Jun 9, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/nesquena/hermes-webui/pull/3646 | CISA-ADP | Issue TrackingVendor |
| https://github.com/nesquena/hermes-webui/commit/2c7b530071bb29ae4184e83e33be5799d529568e | [email protected] | Source CodeVendor |
| https://github.com/nesquena/hermes-webui/pull/3646 | [email protected] | Issue TrackingVendor |
| https://github.com/nesquena/hermes-webui/pull/3672 | [email protected] | Vendor |
| https://github.com/nesquena/hermes-webui/releases/tag/v0.51.269 | [email protected] | Release NotesVendor |
| https://www.vulncheck.com/advisories/hermes-webui-profile-isolation-bypass-via-sessions-search | [email protected] | AdvisoryRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Hermes WebUI | < 0.51.269 (semver) |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jul 14, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 9, 2026 | CVE Modified | CISA-ADP |
| Jun 9, 2026 | New CVE Received | [email protected] |