CVE-2026-102248

A vulnerability was identified in Rebuild up to 4.4.7/4.5.0-beta5. This affects an unknown part of the file /user/login of the component Login Endpoint. The manipulation leads to improper authentication. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

  • Published Sep 29, 2026
  • CVSS 5.5 medium
  • 0.4% chance of exploitation in the next 30 days (EPSS)
  • No fix is known yet

Affected software

CVE-2026-102248 at the National Vulnerability Database