Medium severity · published Oct 11, 2026
CVE-2026-108769
zhayujie CowAgent Markdown Rendering Markdown.tsx denial of service
4.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
CowAgent · zhayujie
2.0; 2.1; 2.2.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-108769
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-108769
vdb-entry
https://vuldb.com/vuln/416551
signature
https://vuldb.com/vuln/416551/cti
third-party-advisory
https://vuldb.com/cve/CVE-2026-108769
third-party-advisory
https://vuldb.com/submit/958041
exploit
https://github.com/outlookgp/CVE/tree/main/CowAgent_Markdown_Stream_Render_DoS_Report
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