CVE-2026-49956
Hermes WebUI < 0.51.269 Profile Isolation Bypass via sessions search
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-862 |
| Vendor | nesquena |
| Product | hermes-webui |
| Published | Jun 9, 2026 |
| Last Updated | Jun 9, 2026 |
Stay Ahead of the Next One
Get instant alerts for nesquena hermes-webui
Be the first to know when new medium vulnerabilities affecting nesquena hermes-webui are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
nesquena / hermes-webui
0 < 0.51.269
References
github.com: https://github.com/nesquena/hermes-webui/releases/tag/v0.51.269 github.com: https://github.com/nesquena/hermes-webui/pull/3646 github.com: https://github.com/nesquena/hermes-webui/pull/3672 github.com: https://github.com/nesquena/hermes-webui/commit/2c7b530071bb29ae4184e83e33be5799d529568e vulncheck.com: https://www.vulncheck.com/advisories/hermes-webui-profile-isolation-bypass-via-sessions-search
Credits
Chia Min Jun Lennon