CVE-2026-58174
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…
Does this matter?
Lower severity and a low EPSS score (0.45%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 6.0 MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.45% probability · 38th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-732
- Source
- disclosure@vulncheck.com
References
- https://github.com/nesquena/hermes-webui/commit/3d5ef4758e920ba6888d49aaa4341de214693496
- https://github.com/nesquena/hermes-webui/pull/4489
- https://github.com/nesquena/hermes-webui/pull/4506
- https://github.com/nesquena/hermes-webui/releases/tag/v0.51.521
- https://www.vulncheck.com/advisories/hermes-webui-cross-profile-authorization-bypass-via-unset-session-profile-on-import
- https://github.com/nesquena/hermes-webui/pull/4489
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.