CVE-2026-84288

Name of the Vulnerable Software and Affected Versions hermes-agent versions prior to 0.18.3

Description A remote denial of service issue exists within the ACP Prompt Workflow component. The flaw is located in the HermesACPAgent.prompt() function within the acp adapter/session.py file, where improper manipulation can lead to a system crash or unavailability.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability. As a temporary workaround, consider restricting the use of the HermesACPAgent.prompt() function to minimize the risk of exploitation.