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NVD description
Hermes WebUI before 0.51.409 contains an authentication bypass vulnerability in passkey registration endpoints that allows unauthenticated remote attackers to register arbitrary passkeys. When HERMES_WEBUI_PASSKEY=1 is enabled with no existing credentials, POST /api/auth/passkey/register/options and POST /api/auth/passkey/register endpoints are accessible without authentication, allowing attackers to claim the first passkey and gain permanent administrative control.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
STABLE
CVE-2026-55196 Authentication Bypass in Hermes WebUI Before 0.51.409 Passkey Registration Endpoints https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-55196
Post summary
A new authentication bypass vulnerability (CVE-2026-55196) affecting Hermes WebUI before v0.51.409 was disclosed, but no PoC, exploit, patch, or active exploitation details were provided.
CVE-2026-55196 Hermes WebUI before 0.51.409 contains an authentication bypass vulnerability in passkey registration endpoints that allows unauthenticated remote attackers to registe… https://www.cve.org/CVERecord?id=CVE-2026-55196
Post summary
The tweet announces the discovery of CVE-2026-55196, an authentication bypass in Hermes WebUI prior to version 0.51.409, providing technical details but lacking proof of exploitation or mitigation information.