YouTrack WebSocket Canvas Injection before 2026.2.18634
CVE-2026-86487 Published on September 7, 2026
In JetBrains YouTrack before 2026.2.18634 a crafted WebSocket message allowed read-only whiteboard users to modify canvas content
Vulnerability Analysis
CVE-2026-86487 can be exploited with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
CVE-2026-86487 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2026-86487
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Affected Versions
JetBrains YouTrack:- Before 2026.2.18634 is affected.