CVE-2026-124505 PUBLISHED

A flaw has been found in Dianping CAT 3.0.0/3.1.0/4.0-RC1. This affects the function Handler.redirect of the file Handler.java of the component Login/Logout. Executing a manipulation of the argument rtnUrl can lead to open redirect. The attack may be performed from remote. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

• lucasg2g (VulDB User) reporter
• VulDB CNA Team coordinator

• VDB-432809 | Dianping CAT Login/Logout Handler.java Handler.redirect
• VDB-432809 | CTI Indicators (IOB, IOC, TTP, IOA)
• CVE-2026-124505 | CVE Analysis and Report
• Submit #1035480 | Dianping (Meituan) CAT (Central Application Tracking), module `cat-home` 3.0.0 (released tag, same `redirect()` code) and the 4.0-RC1 development line; reviewed at commit e815e74d4c2dd74edac831241f1253fcc7d25381 URL redirection to untrusted site — open

• Open Redirect CWE