CVE-2026-108683 zhayujie CowAgent Media Download memory allocation
Remote attackers can cause denial of service in CowAgent via uncontrolled memory allocation in the media download handler.
- 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-2026-108683?
CVE-2026-108683 is a medium-severity denial of service vulnerability in zhayujie CowAgent, published on 11 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A security vulnerability has been detected in zhayujie CowAgent up to 2.1.9. The impacted element is an unknown function of the component Media Download Handler. Such manipulation leads to uncontrolled memory allocation. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 2.2.0 is sufficient to resolve this issue. The name of the patch is b7967210268fc4c0afea1078223e74e7e96a8a54. You should upgrade the affected component.
Which versions are affected by CVE-2026-108683?
How do I fix CVE-2026-108683?
No fix has been published for CVE-2026-108683 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-108683 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108683 exists.
Sources
Also known as GHSA-gvp9-cf4x-m67p.