CVE-2026-10224: Hermes agent Remote Code Execution Vulnerability

MODERATE
Advisory Identifier: GHSA-pmqc-57g8-c22c
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CVSS 5.3
CWE-400
Published
Advisory Summary

CVE-2026-10224 is a MODERATE (CVSS 5.3) remote code execution vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Hermes agent libraries in the PyPI ecosystem. The issue involves hermes-agent has an uncontrolled resource consumption issue. Remediation is available in the latest vendor maintenance releases.

CVE-2026-10224 at a Glance

CVE Identifier CVE-2026-10224
GHSA Identifier GHSA-pmqc-57g8-c22c
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Hermes agent
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2026-10224

To remediate this vulnerability, upgrade all affected Hermes agent dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

hermes-agent fixed: Latest secure release 
pip install hermes-agent>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show hermes-agent

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-10224, inspect your installed packages using pip:

pip show hermes-agent

Analyze the terminal output to locate any version of Hermes agent in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show hermes-agent command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Hermes agent, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2026-10224 Affected Hermes agent Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
hermes-agent
pypi/hermes-agent
PyPI
≤ 0.19.0

References

vuldb.com/vuln/367503/cti WEB
https://vuldb.com/vuln/367503/cti
NVD — CVE-2026-10224 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-10224
Hermes agent Source Repository REPOSITORY
https://github.com/NousResearch/hermes-agent/issues/29154
Hermes agent Source Repository REPOSITORY
https://github.com/NousResearch/hermes-agent/pull/73406
Hermes agent Source Repository REPOSITORY
https://gist.github.com/YLChen-007/0304e313d811f187ade93d3b01de0f87
Hermes agent Source Repository REPOSITORY
https://github.com/NousResearch/hermes-agent
vuldb.com/cve/cve-2026-10224 WEB
https://vuldb.com/cve/CVE-2026-10224
vuldb.com/submit/822022 WEB
https://vuldb.com/submit/822022
vuldb.com/vuln/367503 WEB
https://vuldb.com/vuln/367503

Frequently Asked Questions

What is CVE-2026-10224?
CVE-2026-10224 is a security vulnerability in Hermes agent involving hermes-agent has an Uncontrolled Resource Consumption issue under CWE-400: Uncontrolled Resource Consumption.
Which Hermes agent versions are affected?
Affected versions include releases prior to current release patches across affected packages: hermes-agent.
What version fixes CVE-2026-10224?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is hermes-agent affected?
Yes, hermes-agent is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-10224?
CVE-2026-10224 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2026-10224?
CVE-2026-10224 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check PyPI dependencies for CVE-2026-10224?
Run the dependency tree command: 'pip show hermes-agent'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-pmqc-57g8-c22c",
  "modified" : "2026-07-28T19:46:01Z",
  "published" : "2026-06-01T06:30:27Z",
  "aliases" : [ "CVE-2026-10224" ],
  "summary" : "hermes-agent has an Uncontrolled Resource Consumption issue",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "hermes-agent"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.19.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-10224"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/NousResearch/hermes-agent/issues/29154"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/NousResearch/hermes-agent/pull/73406"
  }, {
    "type" : "WEB",
    "url" : "https://gist.github.com/YLChen-007/0304e313d811f187ade93d3b01de0f87"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/NousResearch/hermes-agent"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/cve/CVE-2026-10224"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/submit/822022"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/367503"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/vuln/367503/cti"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-28T19:46:01Z",
    "nvd_published_at" : "2026-06-01T06:16:38Z"
  }
}