CVE-2026-15628 zhayujie chatgpt-on-wechat CowAgent Vision Tool vision.py Vision._download_to_data_url server-side request forgery
Attackers can exploit a server-side request forgery flaw in the Vision Tool to access internal resources or bypass security controls.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15628?
CVE-2026-15628 is a medium-severity server-side request forgery vulnerability in zhayujie chatgpt-on-wechat CowAgent, published on 14 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-918
Which versions are affected by CVE-2026-15628?
How do I fix CVE-2026-15628?
No fix has been published for CVE-2026-15628 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-15628 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15628 exists.
Sources
Also known as GHSA-76cc-739m-wwpv.