CVE-2026-10548 Auth bypass in hermes-agent
Local attackers can bypass authentication in the credential pool synchronization to escalate privileges or access sensitive credentials.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-10548?
CVE-2026-10548 is a medium-severity authentication bypass vulnerability in NousResearch hermes-agent, published on 2 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A security flaw has been discovered in NousResearch hermes-agent up to 2026.4.23. This affects the function _sync_anthropic_entry_from_credentials_file of the file agent/credential_pool.py of the component Credential Pool Synchronization. The manipulation results in improper authentication. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-287
Which versions are affected by CVE-2026-10548?
How do I fix CVE-2026-10548?
No fix has been published for CVE-2026-10548 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-10548 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10548 exists.
Sources
Also known as GHSA-g28j-ffjc-vcrh.