AUGUST 4, 2026
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Case File

CVE-2025-12390

MEDIUM · CVSS 6 EPSS 0.13% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-10-28 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.0. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2025-12390
Severity
MEDIUM
CVSS
6
EPSS
0.13%

Original NVD Description

A flaw was found in Keycloak. In Keycloak where a user can accidentally get access to another user's session if both use the same device and browser. This happens because Keycloak sometimes reuses session identifiers and doesn’t clean up properly during logout when browser cookies are missing. As a result, one user may receive tokens that belong to another user.