CVE-2026-58174Medium· 6.5▾ TwilightPoC availableHermes 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 persi…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 35.8 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.5%
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.
hermes-webui < 0.51.521Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-49956Medium· 6.5Hermes WebUI < 0.51.269 Profile Isolation Bypass via sessions search
CVE-2026-49958Medium· 5.0Hermes WebUI < 0.51.303 TOCTOU Race Condition via git_discard
CVE-2026-49973Critical· 9.4Hermes WebUI < 0.51.358 Unauthenticated Password Takeover via /api/settings
CVE-2026-58123Critical· 9.8Hermes WebUI < 0.51.788 Unauthenticated RCE via Terminal API
CVE-2026-55197Medium· 6.5Hermes WebUI before 0.51.443 contains a broken access control vulnerability in the /api/session endpoint that allows authenticated users to disclose cross-profile session transcripts
CVE-2026-55198Medium· 6.5Hermes WebUI before 0.51.443 contains an authorization bypass vulnerability in the session export endpoint that allows authenticated users to access sessions from other profiles