PYSEC-2026-3576

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/hermes-agent/PYSEC-2026-3576.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-3576
Aliases
Published
2026-08-04T11:34:40Z
Modified
2026-08-04T14:30:16Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 5.5 (Medium) CVSS_V4 - 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 CVSS Calculator
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.

References

Affected packages

PyPI / hermes-agent

Package

Name
hermes-agent
View open source insights on deps.dev
Purl
pkg:pypi/hermes-agent

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
0.19.0

Affected versions

0.*
0.13.0
0.14.0
0.15.0
0.15.1
0.15.2
0.16.0
0.17.0
0.18.0
0.18.1
0.18.2
0.19.0

Database specific

source
"https://github.com/pypa/advisory-database/blob/main/vulns/hermes-agent/PYSEC-2026-3576.yaml"