CVE-2026-10220 NousResearch hermes-agent skills_tool.py skill_view injection
Remote attackers can execute arbitrary code via injection in the skill_view function of the hermes-agent library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-10220?
CVE-2026-10220 is a medium-severity code injection vulnerability in NousResearch hermes-agent, published on 1 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was determined in NousResearch hermes-agent up to 2026.4.30. Affected is the function _serve_plugin_skill/skill_view of the file tools/skills_tool.py. Executing a manipulation can lead to injection. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-10220?
How do I fix CVE-2026-10220?
No fix has been published for CVE-2026-10220 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-10220 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10220 exists.
Sources
Also known as GHSA-vq96-9529-5crp.