CVE-2026-53869
Hermes Agent < 0.16.0 - DNS Rebinding Bypass via WebSocket Endpoints
Vexday Risk Score
21Baixo
Decisão SSVC (CISA)
Track
Sem sinal de exploração → monitorar
CVSS 8.7EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Ciclo de vida
17 jun 2026Publicada no NVD
Recomendação: Monitorar — sem sinal de exploração no momento.
Hermes Agent before 0.16.0 contains a DNS rebinding vulnerability in WebSocket endpoints that allows remote attackers to bypass Host and Origin validation. FastAPI HTTP middleware does not execute for WebSocket upgrade requests on /api/pty, /api/ws, /api/pub, and /api/events endpoints, enabling attackers to exploit DNS rebinding and inject malicious commands or read terminal output.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Produtos afetados
NousResearch · hermes-agentQuer saber se a sua infraestrutura está exposta a isto?
Falar com a TrueHacking →Referências
https://github.com/NousResearch/hermes-agent/commit/d9ec90585cf7616b5972e44cf8d92bb569fc3febhttps://github.com/NousResearch/hermes-agent/pull/30221https://github.com/NousResearch/hermes-agent/pull/31685https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.5https://www.vulncheck.com/advisories/hermes-agent-dns-rebinding-bypass-via-websocket-endpoints