CVE-2026-49955: falha de média gravidade em nesquena hermes-webui
Hermes WebUI < 0.51.270 Resource Exhaustion via passkey/options
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13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 6.9epss 0.6%
Hermes WebUI before version 0.51.270 contains a resource exhaustion vulnerability that allows unauthenticated remote attackers to degrade service availability by repeatedly calling the passkey options endpoint without completing assertion. Attackers can send unlimited POST requests to the authentication endpoint, causing unbounded growth of the challenge store file and excessive CPU and disk I/O through repeated JSON file rewrites.
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
Produtos afetados
nesquena · hermes-webuiCVEs relacionadas — nesquena hermes-webui
No mesmo produto, das mais perigosas para as menos.
CVE-2026-58123CRITICALHermes WebUI < 0.51.788 Unauthenticated RCE via Terminal APIEPSS 4.6%CVE-2026-49959HIGHHermes WebUI < 0.51.311 RCE via Git Configuration InjectionEPSS 0.9%CVE-2026-49973CRITICALHermes WebUI < 0.51.358 Unauthenticated Password Takeover via /api/settingsEPSS 0.5%CVE-2026-55205MEDIUMHermes WebUI < 0.51.468 - Resource Exhaustion via Unauthenticated OAuth Flow EndpointEPSS 0.5%CVE-2026-6832HIGHNesquena Hermes WebUI Arbitrary File Deletion via Unvalidated session_idEPSS 0.5%CVE-2026-58174MEDIUMHermes WebUI < 0.51.521 - Cross-Profile Authorization Bypass via Unset Session Profile on ImportEPSS 0.5%
Referências
https://github.com/nesquena/hermes-webui/commit/58528a4d88b0fa4f7b822e31d6051c669769bd3bhttps://github.com/nesquena/hermes-webui/pull/3624https://github.com/nesquena/hermes-webui/pull/3674https://github.com/nesquena/hermes-webui/releases/tag/v0.51.270https://www.vulncheck.com/advisories/hermes-webui-resource-exhaustion-via-passkey-options