CVE-2026-7643: medium-severity vulnerability in ChatGPTNextWeb NextChat
ChatGPTNextWeb NextChat API Endpoint Next.js cross-domain policy
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.3epss 0.2%
A flaw has been found in ChatGPTNextWeb NextChat up to 2.16.1. This impacts an unknown function of the file Next.js of the component API Endpoint. Executing a manipulation can lead to permissive cross-domain policy with untrusted domains. The attack may be launched remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
Affected products
ChatGPTNextWeb · NextChatpublic PoCs found — 1
cve_referencegithub.com/ChatGPTNextWeb/NextChat/issues/6756unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — ChatGPTNextWeb NextChat
In the same product, most dangerous first.
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