CVE-2026-86492

JetBrains YouTrack versions before 2026.2.18634 are affected by a vulnerability in a shared token cache that permits cross-tenant theft of GitHub App installation tokens . An attacker with low privileges over the network (no user interaction required) can steal tokens belonging to other tenants, ...

EUVD-2026-72508

In JetBrains YouTrack before 2026.2.18634 a shared token cache allowed cross-tenant theft of GitHub App installation tokens...