CVE-2026-108681

MEDIUM 4.3

zhayujie CowAgent Web Console web_channel.py denial of service

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

A security flaw has been discovered in zhayujie CowAgent up to 2.1.7. Impacted is an unknown function of the file channel/web/web_channel.py of the component Web Console. The manipulation of the argument session_id results in denial of service. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks. Version 2.1.7 (commit dec28324) only partly mitigates via a 512MB body cap. The vendor was contacted early about this disclosure.

CWE	CWE-404
Vendor	zhayujie
Product	cowagent
Published	Oct 11, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

zhayujie / CowAgent

2.1.0 2.1.1 2.1.2 2.1.3 2.1.4 2.1.5 2.1.6 2.1.7

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/416389 vuldb.com: https://vuldb.com/vuln/416389/cti vuldb.com: https://vuldb.com/cve/CVE-2026-108681 vuldb.com: https://vuldb.com/submit/957910 github.com: https://github.com/hackerguopeng/cve/tree/main/CowAgent_Web_Message_Queue_Thread_SSE_DoS_Report

Credits

🔍 hackerguopeng (VulDB User) VulDB CNA Team