AI and data stack advisories

Severe, 6 weeks1496Projects326

1496 severe, 6 weeks · 326 projects

JetBrainsCVE-2026-86491

JetBrains YouTrack: cross-site scripting

JetBrains

CVE-2026-86491 · Published Sep 7, 2026 · updated Sep 8, 2026

Low3.5
Fix: upgrade to 2026.2.18634 or later
JetBrains advisory

In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization icon uploads

Affected versions

PackageAffectedFixed in
YouTrack
Product
< 2026.2.186342026.2.18634
Details and references
CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-79

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