CVE-2026-18992 zhayujie CowAgent Self-Evolution Review Agent executor.py _select_tools authorization
Remote attackers can bypass authorization in the Self-Evolution Review Agent to execute unauthorized actions or code.
- 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-2026-18992?
CVE-2026-18992 is a medium-severity missing authorization vulnerability in zhayujie CowAgent, published on 6 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability was detected in zhayujie CowAgent up to 2.1.1. This vulnerability affects the function _select_tools of the file agent/evolution/executor.py of the component Self-Evolution Review Agent. Performing a manipulation results in incorrect authorization. The attack is possible to be carried out remotely. The exploit is now public and may be used.
Which versions are affected by CVE-2026-18992?
How do I fix CVE-2026-18992?
No fix has been published for CVE-2026-18992 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-2026-18992 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-18992 exists.
Sources
Also known as GHSA-wjcq-xp37-c947.