CVE-2026-10548: Nousresearch Hermes-Agent

Medium severity, CVSS 5.3. EPSS: 0.1% chance of exploitation in the next 30 days.

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.

Affected products

• Nousresearch Hermes-Agent: version 2026.4.0 only; version 2026.4.1 only; version 2026.4.2 only; version 2026.4.3 only; version 2026.4.4 only; version 2026.4.5 only; …

Published 2026-06-02. Last modified 2026-07-22.