CVE-2026-100274
Jetbrains Youtrack: denial of service
- Risk score
- 50/100
- CVSS
- 6.5 v3.1
- Exploit chance (30 days)
- 0.8%
- Published
- 30 Sep 2026
Open in the live forecast Today's forecast
What to know
- What it is
- In JetBrains YouTrack before 2026.2.19197 project Admin could trigger DoS via a notification template
- Affected
- Jetbrains Youtrack before 2026.2.19197
- Fix
- Upgrade Jetbrains Youtrack to 2026.2.19197 or later.
- Exploitation
- No known exploitation
Story map
At a glance
Jetbrains Youtrack: Amber, patch this week. In JetBrains YouTrack before 2026.2.19197 authorisation bypass in the scripts debugger allowed arbitrary code execution
The flaws
- CVE-2026-100274: Denial of service (CVSS 6.5 · EPSS 1%)
- CVE-2026-100273: Incorrect authorisation can lead to remote code execution (CVSS 9.8 · EPSS 0%)
- CVE-2026-100277: Incorrect authorisation (CVSS 9.8 · EPSS 0%)
- CVE-2026-103493: Cross-site scripting (CVSS 8.1 · EPSS 0%)
The fix
Upgrade Jetbrains Youtrack: 2026.2.19197 · 2026.2.19422 or later on your release line
Who is exposed: Jetbrains Youtrack before 2026.2.19197
Where it stands
- No known exploitation
Connects to
- Same weakness: Denial of service (CWE-770). 203 other warnings in 30 days
- Same product: Earlier Jetbrains Youtrack warnings. 28 in the last 90 days
Why it is Yellow
- CVSS 6.5 medium
References
Original description
In JetBrains YouTrack before 2026.2.19197 project Admin could trigger DoS via a notification template
Last activity 30 Sep 2026. Patch Forecast updates every hour.