CVE-2026-123336 · Runtime
NO FIX YET · SEE WHAT TO DO
In JetBrains YouTrack before 2026.2.19728, the limit on attachment size could be bypassed when converting an AI assistant thread. The sources do not say what an attacker gains beyond exceeding the size limit.
first public Nov 6, 2026 · 1 source
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Self-hosted YouTrack instances before 2026.2.19728 that use the AI assistant feature are affected. Instances already on 2026.2.19728 or later, and JetBrains cloud-hosted YouTrack, are not covered by these sources.
Not affected if already-patched
Who cares jetbrains, self-hosted, youtrack
2026.2.19728 or later.In JetBrains YouTrack before 2026.2.19728 the attachment size limit could be bypassed via AI assistant thread conversion
This page as .md · .json · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
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