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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.

PUBLISHED Reserved 2026-04-12 | Published 2026-04-12 | Updated 2026-04-12 | Assigner VulDB




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
HIGH: 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:W/RC:R
HIGH: 7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:W/RC:R
7.5AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:W/RC:UR

Problem types

Missing Authentication

Improper Authentication

Product status

2.0.0
affected

2.0.1
affected

2.0.2
affected

2.0.3
affected

2.0.4
affected

Timeline

2026-04-12:Advisory disclosed
2026-04-12:VulDB entry created
2026-04-12:VulDB entry last update

Credits

York Shen (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/356992 (VDB-356992 | zhayujie chatgpt-on-wechat CowAgent Agent Mode Service missing authentication) vdb-entry

vuldb.com/vuln/356992/cti (VDB-356992 | CTI Indicators (IOB, IOC)) signature permissions-required

vuldb.com/submit/795272 (Submit #795272 | zhayujie chatgpt-on-wechat (CowAgent) 2.0.4 Unauthenticated Remote Code Execution) third-party-advisory

github.com/zhayujie/chatgpt-on-wechat/issues/2741 issue-tracking

github.com/zhayujie/chatgpt-on-wechat/issues/2741 exploit issue-tracking

cve.org (CVE-2026-6129)

nvd.nist.gov (CVE-2026-6129)

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