CVE-2026-108769 zhayujie CowAgent Markdown Rendering Markdown.tsx denial of service
Remote attackers can cause a denial of service in CowAgent via the Markdown rendering component, requiring attention from users of this chatbot.
- 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-2026-108769?
CVE-2026-108769 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 flaw has been discovered in zhayujie CowAgent up to 2.2.0. This affects an unknown part of the file Markdown.tsx of the component Markdown Rendering. The manipulation results in denial of service. It is possible to launch the attack remotely. 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.
Weakness: CWE-404
Which versions are affected by CVE-2026-108769?
How do I fix CVE-2026-108769?
No fix has been published for CVE-2026-108769 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-2026-108769 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108769 exists.
Sources
Also known as GHSA-3495-753p-x98c.