Medium severity4.3NVD Advisory· Published May 2, 2026· Updated May 5, 2026

CVE-2026-7643

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

ChatGPTNextWeb/Nextchatreferences2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: <=2.16.1

Patches

Vulnerability mechanics

References

News mentions

No linked articles in our index yet.

Severity

MediumCVSS v3.1

4.3/ 10

CVSS v42.1

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack vector: Network
Complexity: Low
Privileges: None
User interaction: Required
Scope: Unchanged
Confidentiality: None
Integrity: Low
Availability: None

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Affected

Source repo: github.com/ChatGPTNextWeb/NextChat/

EPSS

Probability of exploitation in the next 30 days.

0.16%

VYPR risk score

Composite of severity, exploitation, and reach.

0.28low

cvss	0.280
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-346
Origin Validation Error
CWE-942
Permissive Cross-domain Security Policy with Untrusted Domains

CVE ID

CVE-2026-7643

Credits

Y(
Yu_Bao (VulDB User)
reporter
VC
VulDB CNA Team
coordinator