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Threatist priority CRITICAL 0 HIGH 0 MEDIUM 2 LOW 0

Signals Exploited in the wild (KEV) 0 Patch available 2 No fix listed 0 Has CVE 2

Fix status Fixed 2 Partial 0 Will not fix 0 Deferred 0 No fix listed 0

Impact type Code execution 0 Privilege escalation 0 Security bypass 2 Information disclosure 0 Tampering 0 Denial of service 0 Spoofing 0 Cross-site scripting 0 SQL injection 0

Attack vector Network 2 Adjacent network 0 Local 0 Physical 0

Requirements No authentication 0 No user interaction 2

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Weakness (CWE) CWE-639 Authorization Bypass Through User-Controlled Key 2

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Release: nesquena hermes-webui 0.51.443 × Clear all filters

TI-2026-39878 CVE-2026-55198 · GHSA-34j3-4jpj-gx6q

Hermes WebUI < 0.51.443 - Cross-Profile Session Data Exfiltration via Session Export Endpoint

Priority MEDIUM 64

Hermes 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.

CVSS 4.0HIGH 7.1· Network · Low privileges · No interaction · EPSS 0.00346 · Published 2026-06-17 · Fixed in 0.51.443 CWE-639

TI-2026-39877 CVE-2026-55197 · GHSA-5wqv-fhmr-pjgh

Hermes WebUI < 0.51.443 - Broken Access Control in /api/session Endpoint

Priority MEDIUM 64

Hermes 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.

CVSS 4.0HIGH 7.1· Network · Low privileges · No interaction · EPSS 0.00346 · Published 2026-06-17 · Fixed in 0.51.443 CWE-639

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