PT-2026-36625 · Nextchat · Nextchat

Yu_Bao · Published 2026-05-02 · Updated 2026-05-02 · CVE-2026-7643

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

Name of the Vulnerable Software and Affected Versions ChatGPTNextWeb NextChat versions prior to 2.16.2

Description A flaw in the API Endpoint component within the Next.js file allows for a permissive cross-domain policy with untrusted domains. This issue enables a remote attacker to execute a manipulation that bypasses domain restrictions.

Recommendations Update to version 2.16.2 or later.

Exploit

Fix

Origin Validation Error

Weakness Enumeration

CWE-346

CWE-942

Related Identifiers

CVE-2026-7643

Affected Products

Nextchat

References · 9

• 🔥 https://github.com/ChatGPTNextWeb/NextChat/issues/6756 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-7643 · Security Note
• https://github.com/ChatGPTNextWeb/NextChat · Note
• https://t.me/CVEtracker/52540 · Telegram Post
• https://vuldb.com/vuln/360755 · Note
• https://vuldb.com/submit/806833 · Note
• https://t.me/cveNotify/161882 · Telegram Post
• https://vuldb.com/vuln/360755/cti · Note
• https://twitter.com/VulmonFeeds/status/2050625082288959737 · Twitter Post