VULNERABILITY INTELLIGENCE
CVE-2026-71963
CVSS score8.6 HIGH
EPSS probability0.86%
CISA KEVNot currently listed
Published2026-09-03
Last modified2026-09-08
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Description
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.
Weakness classification
- CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')