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Sunday, 13 September 2026
8 agent hacks today▲ 7 vs yesterday (1)
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Incident database

CVE-2026-9353: Prompt injection flaw in NousResearch hermes-agent Skills Guard

A publicly disclosed vulnerability (CVE-2026-9353) in NousResearch hermes-agent up to version 2026.4.23 allows remote injection via manipulation of the THREAT_PATTERNS argument in the Skills Guard Multi-Word Prompt Handler (agent/skills_guard.py). The exploit has been published and the vendor did not respond to disclosure attempts.

Disclosed 24 May 2026 · Record updated 13 September 2026

Impact

Remotely exploitable injection in the agent's prompt threat-pattern guard; exploit code publicly disclosed and no vendor response.

Our coverage

No articles linked to this incident yet.

Sources

  1. nvd.nist.govhttps://nvd.nist.gov/vuln/detail/CVE-2026-9353