{"id":"CVE-2026-7643","state":"PUBLISHED","title":"ChatGPTNextWeb NextChat API Endpoint Next.js cross-domain policy","description":"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.","publishedAt":"2026-05-02T14:45:12.877Z","updatedAt":"2026-05-04T18:03:06.500Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"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","source":"VulDB"},"assigner":"VulDB","products":["ChatGPTNextWeb NextChat"],"affected":[{"vendor":"ChatGPTNextWeb","product":"NextChat","versions":[{"version":"2.16.0","status":"affected"},{"version":"2.16.1","status":"affected"}],"modules":["API Endpoint"]}],"references":["https://vuldb.com/vuln/360755","https://vuldb.com/vuln/360755/cti","https://vuldb.com/submit/806833","https://github.com/ChatGPTNextWeb/NextChat/issues/6756","https://github.com/ChatGPTNextWeb/NextChat/"],"weaknesses":["CWE-942","CWE-346"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/7xxx/CVE-2026-7643.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-7643","state":"PUBLISHED","datePublished":"2026-05-02T14:45:12.877Z","dateUpdated":"2026-05-04T18:03:06.500Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-05-01T16:33:59.113Z"},"containers":{"cna":{"title":"ChatGPTNextWeb NextChat API Endpoint Next.js cross-domain policy","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"ChatGPTNextWeb","product":"NextChat","versions":[{"version":"2.16.0","status":"affected"},{"version":"2.16.1","status":"affected"}],"modules":["API Endpoint"]}],"references":[{"url":"https://vuldb.com/vuln/360755","name":"VDB-360755 | ChatGPTNextWeb NextChat API Endpoint Next.js cross-domain policy","tags":["vdb-entry"]},{"url":"https://vuldb.com/vuln/360755/cti","name":"VDB-360755 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/submit/806833","name":"Submit #806833 | ChatGPTNextWeb NextChat 2.16.1 Permissive CORS Wildcard Policy","tags":["third-party-advisory"]},{"url":"https://github.com/ChatGPTNextWeb/NextChat/issues/6756","tags":["exploit","issue-tracking"]},{"url":"https://github.com/ChatGPTNextWeb/NextChat/","tags":["product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.3,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":4.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":4.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5,"vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-942","type":"CWE","lang":"en","description":"Permissive Cross-domain Policy with Untrusted Domains"}]},{"descriptions":[{"cweId":"CWE-346","type":"CWE","lang":"en","description":"Origin Validation Error"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-05-02T14:45:12.877Z"},"timeline":[{"time":"2026-05-01T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-05-01T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-05-01T18:39:08.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"Yu_Bao (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-04T18:02:25.979782Z","id":"CVE-2026-7643","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-04T18:03:06.500Z"}}]}}}