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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.

PUBLISHED Reserved 2026-07-13 | Published 2026-07-14 | Updated 2026-07-14 | Assigner VulDB




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 6.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
MEDIUM: 6.3CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C

Problem types

Server-Side Request Forgery

Product status

2.1.0
affected

2.1.1
affected

2.1.2
unaffected

Timeline

2026-07-13:Advisory disclosed
2026-07-13:VulDB entry created
2026-07-13:VulDB entry last update

Credits

Eric-e (VulDB User) reporter

References

vuldb.com/vuln/378130 (VDB-378130 | zhayujie chatgpt-on-wechat CowAgent Vision Tool vision.py Vision._download_to_data_url server-side request forgery) vdb-entry technical-description

vuldb.com/vuln/378130/cti (VDB-378130 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-15628 (CVE-2026-15628 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/855849 (Submit #855849 | zhayujie chatgpt-on-wechat 2.1.0 Server-Side Request Forgery (SSRF) (CWE-918)) third-party-advisory

github.com/zhayujie/CowAgent/issues/2878 exploit issue-tracking

github.com/zhayujie/CowAgent/pull/2886 issue-tracking patch

github.com/...ommit/e85290cddcbb5ffc9c235927f4c92e5b4c3ec264 patch

github.com/zhayujie/CowAgent/releases/tag/2.1.2 patch

cve.org (CVE-2026-15628)

nvd.nist.gov (CVE-2026-15628)

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