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CVE-2026-9353

CVE-2026-9353 · NousResearch hermes-agent Skills Guard Multi-Word Prompt skills_guard.py injection

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.9 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • hermes-agent

    Versions
    • 2026.4.0: Affected
    • 2026.4.1: Affected
    • 2026.4.2: Affected
    • 2026.4.3: Affected
    • 2026.4.4: Affected
    • 2026.4.5: Affected
    • 2026.4.6: Affected
    • 2026.4.7: Affected
    • 2026.4.8: Affected
    • 2026.4.9: Affected
    • 2026.4.10: Affected
    • 2026.4.11: Affected
    • 2026.4.12: Affected
    • 2026.4.13: Affected
    • 2026.4.14: Affected
    • 2026.4.15: Affected
    • 2026.4.16: Affected
    • 2026.4.17: Affected
    • 2026.4.18: Affected
    • 2026.4.19: Affected
    • 2026.4.20: Affected
    • 2026.4.21: Affected
    • 2026.4.22: Affected
    • 2026.4.23: Affected

    No fix published

  • hermes-agent PyPI

    Versions
    • 0.13.0
    • 0.14.0
    Affected ranges
    • ECOSYSTEM: < 0.15.0

    Update to 0.15.0

Original sources

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