# 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.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Jun 2026
- **Updated:** 1 Jun 2026
- **Also known as:** GHSA-pmqc-57g8-c22c, PYSEC-2026-3576

## 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.

Weakness: CWE-404 (Improper Resource Shutdown or Release), CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2026-10224?

3 open source packages ship an affected version, including hermes-agent.


| Package | Ecosystem | 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.

## Is CVE-2026-10224 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10224 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-10224 and fix it if it is affected.

What it is: 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.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10224 exists.

Affected packages and fixed versions:
- hermes-agent (PyPI): affected all versions up to 0.19.0; no fix listed
- hermes-agent (PyPI): affected all versions up to 0.19.0; no fix listed
- hermes-agent (PyPI): affected all versions up to 0.19.0; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-10224/ (Markdown: https://insights.sbomify.com/CVE-2026-10224/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-10224
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-10224
- OSV: https://osv.dev/vulnerability/CVE-2026-10224

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-10224/
Summaries are generated and may contain mistakes; the official description above is the record.