CVE-2026-100274: CWE-770 in JetBrains YouTrack
CVE-2026-100274 is a denial-of-service (DoS) vulnerability in JetBrains YouTrack versions before 2026.2.19197. The flaw allows a project administrator to trigger a DoS condition via a notification template. This vulnerability does not impact confidentiality or integrity but can disrupt availability of the affected YouTrack instance.
AI Analysis
Technical Summary
This vulnerability (CWE-770) in JetBrains YouTrack prior to version 2026.2.19197 allows a project administrator to cause a denial-of-service by exploiting the notification template functionality. The CVSS 3.1 score is 6.5 (medium severity), reflecting network attack vector, low attack complexity, required privileges of a project admin, no user interaction, and impact limited to availability (no confidentiality or integrity impact).
Potential Impact
An attacker with project administrator privileges can cause a denial-of-service condition, impacting the availability of the YouTrack service. There is no impact on confidentiality or integrity of data. This could disrupt normal operations for users relying on the affected YouTrack instance.
Mitigation Recommendations
A fix is available in JetBrains YouTrack version 2026.2.19197. Users should upgrade to this version or later to remediate the vulnerability. Since this is not a cloud service, remediation requires applying the update on-premises.
CVE-2026-100274: CWE-770 in JetBrains YouTrack
Description
CVE-2026-100274 is a denial-of-service (DoS) vulnerability in JetBrains YouTrack versions before 2026.2.19197. The flaw allows a project administrator to trigger a DoS condition via a notification template. This vulnerability does not impact confidentiality or integrity but can disrupt availability of the affected YouTrack instance.
CVSS v3.1
Score 6.5medium
Affected software
JetBrains
YouTrack
pkg:maven/com.jetbrains/youtrackRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-770) in JetBrains YouTrack prior to version 2026.2.19197 allows a project administrator to cause a denial-of-service by exploiting the notification template functionality. The CVSS 3.1 score is 6.5 (medium severity), reflecting network attack vector, low attack complexity, required privileges of a project admin, no user interaction, and impact limited to availability (no confidentiality or integrity impact).
Potential Impact
An attacker with project administrator privileges can cause a denial-of-service condition, impacting the availability of the YouTrack service. There is no impact on confidentiality or integrity of data. This could disrupt normal operations for users relying on the affected YouTrack instance.
Mitigation Recommendations
A fix is available in JetBrains YouTrack version 2026.2.19197. Users should upgrade to this version or later to remediate the vulnerability. Since this is not a cloud service, remediation requires applying the update on-premises.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-09-25T17:02:09.362Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abd2c342a4e24523d2ec319
Added to database: 09/30/2026, 15:35:16 UTC
Last enriched: 09/30/2026, 15:50:08 UTC
Last updated: 10/01/2026, 03:43:05 UTC
Views: 13
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