CVE-2026-71963: fallo de gravedad alta en NousResearch hermes-agent
Hermes Agent 0.18.2 - 0.21.0 RCE via git core.fsmonitor Config Injection
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
41Vexday Risk Score
Sin señal de explotación. Ella tiene prueba de concepto pública.
ssvc Attendcvss 8.6epss 0.9%
de la publicación al arma24 días
Publicada en NVD3 sept
1ª PoC+24d
Hermes Agent 0.18.2 through 0.21.0, fixed in commit f6234d0, contains a remote code execution vulnerability that allows attackers to execute arbitrary OS commands by supplying a malicious repository with a crafted .git/config that sets core.fsmonitor to an attacker-controlled command. When a user opens the malicious repository and sends any message, the agent triggers a git status index refresh which executes the injected command in the user's process context, exposing the full environment including configured provider API keys.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Productos afectados
NousResearch · hermes-agentPoCs públicas encontradas — 2
githubgithub.com/Boreas37/CVE-2026-71963-PoC★ 0cve_referencewww.manifold.security/blog/ai-coding-agents-git-hijackno verificado⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
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Referencias
https://github.com/NousResearch/hermes-agent/commit/f6234d00c5d59450adea1d7edd30ad3859375c79https://github.com/NousResearch/hermes-agent/pull/101483https://www.manifold.security/blog/ai-coding-agents-git-hijackhttps://www.vulncheck.com/advisories/hermes-agent-rce-via-git-core-fsmonitor-config-injection