CVE-2026-58174
Hermes WebUI < 0.51.521 - Cross-Profile Authorization Bypass via Unset Session Profile on Import
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
Hermes WebUI before 0.51.521 validates the workspace of an imported session under the active named profile but constructs the Session object without setting its profile in the /api/session/import handler, so the imported session is persisted with a null profile. Because a null profile is treated as the default profile by the profile authorization check, a user on the default profile can export the imported session transcript and use its session identifier to read files from the named profile's workspace, defeating the application's profile isolation.
| CWE | CWE-732 |
| Vendor | nesquena |
| Product | hermes-webui |
| Published | Jun 30, 2026 |
| Last Updated | Jun 30, 2026 |
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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 < 0.51.521
References
github.com: https://github.com/nesquena/hermes-webui/releases/tag/v0.51.521 github.com: https://github.com/nesquena/hermes-webui/pull/4489 github.com: https://github.com/nesquena/hermes-webui/pull/4506 github.com: https://github.com/nesquena/hermes-webui/commit/3d5ef4758e920ba6888d49aaa4341de214693496 vulncheck.com: https://www.vulncheck.com/advisories/hermes-webui-cross-profile-authorization-bypass-via-unset-session-profile-on-import
Credits
Chia Min Jun Lennon