CVE-2026-55205Proof of concept (PoC) published · CISASuited to automated attack · CISA
Hermes WebUI < 0.51.468 - Resource Exhaustion via Unauthenticated OAuth Flow Endpoint
CVSS score
6.9
EPSS probability
%0.5
Risk score
0.0
Published
4 mo ago
Vulnerability Timeline (Change History)
CVE-2026-55205 historical changes made to the vulnerability by NVD, CISA and MITRE:
| Date | Actor / Source | Action / Description | Type | Previous value | New value |
|---|---|---|---|---|---|
| 17.09.2026 | nvd@nist.gov | Initial Analysis & CVSS Vector Assignment | CVSS V3.1 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| 18.06.2026 | CISA Coordinator | SSVC Risk Re-assessment | SSVC / KEV | exploitation: none | exploitation: none |
| 18.06.2026 | MITRE / NVD | New CVE Record Received & Ingested | CVE Created | — | CVE-2026-55205 |
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