PT-2026-59172 · Pypi · Hermes-Agent

Published 2026-07-13 · Updated 2026-07-13

OSV

CVSS v3.1

7.3

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

A security vulnerability has been detected in NousResearch hermes-agent up to 2026.4.23. Impacted is an unknown function of the file agent/skills guard.py of the component Skills Guard Multi-Word Prompt Handler. The manipulation of the argument THREAT PATTERNS leads to injection. Remote exploitation of the attack is possible. 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.

Fix

Related Identifiers

PYSEC-2026-2509

Affected Products

Hermes-Agent

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2026-9353 · Security Note
• https://osv.dev/vulnerability/PYSEC-2026-2509 · Vendor Advisory
• https://github.com/NousResearch/hermes-agent · Note
• https://github.com/NousResearch/hermes-agent/commit/7ebebfbb8d10937cbf2219b4cf5e121b71e67428 · Note
• https://github.com/NousResearch/hermes-agent/pull/26852 · Note
• https://gist.github.com/YLChen-007/82a3539d6358842e69dfaef0a9fcf14a · Note
• https://pypi.org/project/hermes-agent · Note
• https://vuldb.com/vuln/365316/cti · Note
• https://vuldb.com/submit/812216 · Note
• https://vuldb.com/vuln/365316 · Note
• https://github.com/advisories/GHSA-238w-f66p-w349 · Note