CVE-2026-108768 zhayujie CowAgent Streaming Tool-Call Argument json.loads allocation of resources
Remote attackers can cause resource exhaustion in CowAgent via crafted streaming tool-call arguments, leading to denial of service.
- 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-2026-108768?
CVE-2026-108768 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 vulnerability was identified in zhayujie CowAgent up to 2.2.0. Affected by this issue is the function json.loads of the component Streaming Tool-Call Argument Handler. The manipulation leads to allocation of resources. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-108768?
How do I fix CVE-2026-108768?
No fix has been published for CVE-2026-108768 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-2026-108768 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108768 exists.
Sources
Also known as GHSA-cmfc-4qwc-4894.