CVE-2026-71963
High · 8.8CVSS
8.8
EPSS
0.9%
Published
Sep 3, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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