CVE-2026-86491

Stored Cross‑Site Scripting via Icon Uploads in JetBrains YouTrack

Published Sep 7, 2026 CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Description
In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization icon uploads

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Jetbrains
Jetbrains youtrack
Vendors & Products Jetbrains
Jetbrains youtrack
Type Values Removed Values Added
Title Stored Cross‑Site Scripting via Icon Uploads in JetBrains YouTrack
Type Values Removed Values Added
Description In JetBrains YouTrack before 2026.2.18634 stored XSS was possible via project and organization icon uploads
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 3.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
JetBrains
Published
Updated
Sep 8, 2026, 10:35 AM
Reserved
Sep 7, 2026, 4:13 PM
Status
Deferred
Published
Sep 7, 2026, 5:17 PM
Modified
Sep 8, 2026, 3:30 PM