CVE-2026-71963

High8.8Published on September 3, 2026

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 score8.8 / 10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness type (CWE)CWE-78

Vulnerabilities

Git Turned into a Trap: Seven AI Agents Can Execute Code from Repositories

Seven AI coding agents execute attacker code via malicious Git core.fsmonitor config when auto-running git status, bypassing trust and sandbox controls.

Sep 2, 202623:106 min readRead

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Git Turned into a Trap: Seven AI Agents Can Execute Code from Repositories