CVE-2026-9353 (GCVE-0-2026-9353)
Vulnerability from cvelistv5 – Published: 2026-05-24 03:45 – Updated: 2026-05-26 13:30
VLAI
Title
NousResearch hermes-agent Skills Guard Multi-Word Prompt skills_guard.py injection
Summary
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.
Severity
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/365316 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/365316/cti | signaturepermissions-required |
| https://vuldb.com/submit/812216 | third-party-advisory |
| https://gist.github.com/YLChen-007/82a3539d635884… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NousResearch | hermes-agent |
Affected:
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 cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:* |
Credits
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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