CVE-2026-100275

Stored XSS in JetBrains YouTrack Workflow Error Notification Toast

Published Sep 30, 2026 CVSS 3.1 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
In JetBrains YouTrack before 2026.2.19197 stored XSS in the workflow error notification toast was possible

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:jetbrains:youtrack:*:*:*:*:*:*:*:*
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 XSS in JetBrains YouTrack Workflow Error Notification Toast
Type Values Removed Values Added
Description In JetBrains YouTrack before 2026.2.19197 stored XSS in the workflow error notification toast was possible
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
JetBrains
Published
Updated
Sep 30, 2026, 3:48 PM
Reserved
Sep 25, 2026, 5:02 PM
Status
Analyzed
Published
Sep 30, 2026, 4:16 PM
Modified
Oct 2, 2026, 3:42 PM