What’s Vulnerable › Vulnerabilities

CVE-2026-17432: NousResearch hermes-agent SimpleX Gateway Authorization adapter.py access control

• Severity: medium (CVSS 5.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-26 · updated 2026-10-24
• Weakness: CWE-266

Description

A vulnerability was detected in NousResearch hermes-agent 2026.6.5. Affected by this vulnerability is an unknown functionality of the file hermes-agent/plugins/platforms/simplex/adapter.py of the component SimpleX Gateway Authorization. The manipulation of the argument contactId results in improper access controls. The attack may be launched remotely. A high complexity level is associated with this attack. The exploitation appears to be difficult. The exploit is now public and may be used. The patch is identified as 490c486ff65b766d9de0fe0e6f26e1778aaa8fb3. Applying a patch is advised to resolve this issue.

Affected products

• NousResearch hermes-agent: 2026.6.5

References

• https://github.com/NousResearch/hermes-agent/
• https://github.com/NousResearch/hermes-agent/commit/490c486ff65b766d9de0fe0e6f26e1778aaa8fb3
• https://github.com/NousResearch/hermes-agent/issues/44729
• https://github.com/NousResearch/hermes-agent/issues/44730
• https://github.com/NousResearch/hermes-agent/pull/41246
• https://vuldb.com/cve/CVE-2026-17432
• https://vuldb.com/submit/862424
• https://vuldb.com/vuln/383065
• https://vuldb.com/vuln/383065/cti

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