CVE-2026-17432 NousResearch hermes-agent SimpleX Gateway Authorization adapter.py access control
Remote attackers can bypass access controls in the SimpleX Gateway adapter by manipulating contact IDs, requiring a patch to fix.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-17432?
CVE-2026-17432 is a low-severity missing authorization vulnerability in NousResearch hermes-agent, published on 26 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-17432?
How do I fix CVE-2026-17432?
No fix has been published for CVE-2026-17432 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-17432 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-17432 exists.
Sources
Also known as GHSA-6r3x-gc73-h69w.