Vulnerability · Published Apr 12, 2026 · Assigned by VulDB
CVE-2026-6129zhayujie chatgpt-on-wechat CowAgent Agent Mode Service missing authentication
High 7.3
In plain English
A high-severity missing authentication in chatgpt-on-wechat CowAgent from zhayujie. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).
Official description
A vulnerability was detected in zhayujie chatgpt-on-wechat CowAgent up to 2.0.4. This affects an unknown function of the component Agent Mode Service. Performing a manipulation results in missing authentication. The attack can be initiated remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| zhayujie | chatgpt-on-wechat CowAgent | 2.0.02.0.12.0.22.0.32.0.4 |
Weakness: CWE-306, CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:W/RC:R
References
- VDB-356992 | zhayujie chatgpt-on-wechat CowAgent Agent Mode Service missing authentication vdb-entry
- VDB-356992 | CTI Indicators (IOB, IOC) signature, permissions-required
- Submit #795272 | zhayujie chatgpt-on-wechat (CowAgent) 2.0.4 Unauthenticated Remote Code Execution third-party-advisory
- https://github.com/zhayujie/chatgpt-on-wechat/issues/2741 issue-tracking
- https://github.com/zhayujie/chatgpt-on-wechat/issues/2741#issue-4191903266 exploit, issue-tracking