CVE-2026-9354 (GCVE-0-2026-9354)
Vulnerability from cvelistv5
Published
2026-05-24 04:15
Modified
2026-05-27 17:28
Severity ?
5.5 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RC:R
6.5 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RC:R
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RC:R
6.5 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:P/RC:R
VLAI Severity ?
EPSS score ?
Summary
A vulnerability was detected in NousResearch hermes-agent up to 2026.4.16. The affected element is an unknown function of the component Slack Agent/Mattermost Agent. The manipulation of the argument format_message results in escaping of output. The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
References
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| NousResearch | hermes-agent |
Version: 2026.4.0 Version: 2026.4.1 Version: 2026.4.2 Version: 2026.4.3 Version: 2026.4.4 Version: 2026.4.5 Version: 2026.4.6 Version: 2026.4.7 Version: 2026.4.8 Version: 2026.4.9 Version: 2026.4.10 Version: 2026.4.11 Version: 2026.4.12 Version: 2026.4.13 Version: 2026.4.14 Version: 2026.4.15 Version: 2026.4.16 cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:* |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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