CVE-2026-108769: zhayujie CowAgent Markdown Rendering Markdown.tsx denial of service

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-11 · updated 2026-10-14
Weakness: CWE-404

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.

Affected products

zhayujie CowAgent: 2.0, 2.1, 2.2.0

References

https://github.com/outlookgp/CVE/tree/main/CowAgent_Markdown_Stream_Render_DoS_Report
https://vuldb.com/cve/CVE-2026-108769
https://vuldb.com/submit/958041
https://vuldb.com/vuln/416551
https://vuldb.com/vuln/416551/cti

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