Vulnerability · Published Jul 14, 2026 · Assigned by VulDB
CVE-2026-15628zhayujie chatgpt-on-wechat CowAgent Vision Tool vision.py Vision._download_to_data_url server-side request forgery
Medium 6.3
In plain English
A medium-severity server-side request forgery in chatgpt-on-wechat CowAgent from zhayujie. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).
Official description
A security flaw has been discovered in zhayujie chatgpt-on-wechat CowAgent up to 2.1.1. This issue affects the function Vision._download_to_data_url of the file agent/tools/vision/vision.py of the component Vision Tool. Performing a manipulation of the argument image results in server-side request forgery. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 2.1.2 is capable of addressing this issue. The patch is named e85290cddcbb5ffc9c235927f4c92e5b4c3ec264. The affected component should be upgraded.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| zhayujie | chatgpt-on-wechat CowAgent | 2.1.02.1.1 |
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
References
- VDB-378130 | zhayujie chatgpt-on-wechat CowAgent Vision Tool vision.py Vision._download_to_data_url server-side request forgery vdb-entry, technical-description
- VDB-378130 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-15628 | CVE Analysis and Report third-party-advisory
- Submit #855849 | zhayujie chatgpt-on-wechat 2.1.0 Server-Side Request Forgery (SSRF) (CWE-918) third-party-advisory
- https://github.com/zhayujie/CowAgent/issues/2878 exploit, issue-tracking
- https://github.com/zhayujie/CowAgent/pull/2886 issue-tracking, patch
- https://github.com/zhayujie/CowAgent/commit/e85290cddcbb5ffc9c235927f4c92e5b4c3ec264 patch
- https://github.com/zhayujie/CowAgent/releases/tag/2.1.2 patch