CVE-2026-58174

Description

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.

References

https://www.vulncheck.com/advisories/hermes-webui-cross-profile-authorization-bypass-via-unset-session-profile-on-import

https://github.com/nesquena/hermes-webui/releases/tag/v0.51.521

https://github.com/nesquena/hermes-webui/pull/4506

https://github.com/nesquena/hermes-webui/pull/4489

https://github.com/nesquena/hermes-webui/commit/3d5ef4758e920ba6888d49aaa4341de214693496

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4