CVE-2026-100268
HighCVSS 7.7Exploitation Probability (EPSS)
Low risk25th percentile - higher than 25% of all known CVEs
Summary
In JetBrains YouTrack before version 2026.2.19197, project administrators could read comments from other projects via notification templates.
Risk Assessment
Breaking project isolation may expose confidential information from other projects to administrators who should not have access.
Recommendation
Update YouTrack to version 2026.2.19197 or later to prevent unauthorized comment reading.
Other vulnerabilities in JetBrains YouTrack
See all- CVE-2026-103497Medium
In JetBrains YouTrack before 2026.2.19422, SSRF was possible via the GitHub VCS integration.
- CVE-2026-103496Medium
In JetBrains YouTrack before 2026.2.19422, iDOR in inbox threads allowed reading other users' notifications.
- CVE-2026-103495Medium
In JetBrains YouTrack before 2026.2.19422, missing authorisation allowed reloading of translation catalogs.
- CVE-2026-103493High
In JetBrains YouTrack before 2026.2.19422, stored XSS via Mermaid and LaTeX content was possible. The vulnerability allows execution of arbitrary script in the user's browser.
- CVE-2026-103492Medium
In JetBrains YouTrack before 2026.2.19422, DoS attack was possible via crafted PSD attachments.
- CVE-2026-103491Medium
In JetBrains YouTrack before 2026.2.19422, iDOR in the issue activities API allowed reading restricted issues.
- CVE-2026-86478Critical
In JetBrains YouTrack before 2025.3.161254 and 2026.1.14042, improper authentication in YouTrack Helpdesk allowed unauthenticated account takeover via a self-asserted email address.
- CVE-2026-62422Critical
In JetBrains YouTrack before versions 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, and 2024.2.148429, an authentication bypass via direct database access was possible, leading to administrative access.
- CVE-2026-103494Medium
In JetBrains YouTrack before 2026.2.19422, privilege escalation was possible via user group membership changes.
- CVE-2026-103490High
In JetBrains YouTrack before 2026.2.19422, privilege escalation was possible via user group links. The vulnerability allows a user to gain higher privileges than intended.
Original NVD description (English source)
In JetBrains YouTrack before 2026.2.19197 project administrators could read comments from other projects via notification templates
Vulnerability data from NVD (NIST) · CISA KEV · EPSS