CVE-2026-10224 NousResearch hermes-agent Webhook Endpoint feishu.py _handle_webhook_request resource consumption
Remote attackers can cause resource exhaustion in NousResearch hermes-agent via the Feishu webhook endpoint, leading to denial of service.
- 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-2026-10224?
CVE-2026-10224 is a medium-severity denial of service 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 security vulnerability has been detected in NousResearch hermes-agent up to 2026.4.30. This vulnerability affects the function _handle_webhook_request of the file gateway/platforms/feishu.py of the component Webhook Endpoint. Such manipulation leads to resource consumption. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-10224?
3 open source packages ship an affected version, including hermes-agent.
| Package | Affected | Fixed in |
|---|---|---|
hermes-agent PyPI | All versions to 0.19.0 | None |
hermes-agent PyPI | All versions to 0.19.0 | None |
hermes-agent PyPI | All versions to 0.19.0 | None |
How do I fix CVE-2026-10224?
No fix has been published for CVE-2026-10224 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-10224 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10224 exists.
Sources
Also known as GHSA-pmqc-57g8-c22c, PYSEC-2026-3576.