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JetBrainsCVE-2026-86486

JetBrains YouTrack: missing authentication

JetBrains

CVE-2026-86486 · Published Sep 7, 2026 · updated Sep 8, 2026

Low3.7
Fix: upgrade to 2026.2.18634 or later
JetBrains advisory

In JetBrains YouTrack before 2026.2.18634 the generic VCS webhook handler failed open when its secret was blank

Affected versions

PackageAffectedFixed in
YouTrack
Product
< 2026.2.186342026.2.18634
Details and references
CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-306

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