CVE-2026-100274

Analyzed Analyzed - Analysis Complete

Denial of Service in JetBrains YouTrack via Notification Template

Publication date: 2026-09-30

Last updated on: 2026-10-02

Assigner: JetBrains s.r.o.

Description

In JetBrains YouTrack before 2026.2.19197 project Admin could trigger DoS via a notification template

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-30

Last Modified

2026-10-02

Generated

2026-10-19

AI Q&A

2026-09-30

EPSS Evaluated

2026-10-18

NVD

CVE-2026-100274

EUVD

EUVD-2026-90018

Affected Vendors & Products

Vendor	Product	Version / Range
jetbrains	youtrack	to 2026.2.19197 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-770	The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Attack-Flow Graph

Executive Summary

This vulnerability in JetBrains YouTrack before version 2026.2.19197 allows a project Admin to cause a Denial of Service (DoS) by exploiting a notification template. The issue arises from improper handling of template processing, leading to system resource exhaustion.

Impact Analysis

If you are an administrator or user of an affected JetBrains YouTrack instance, this vulnerability could disrupt service availability. The DoS condition may cause the system to become unresponsive, affecting all users and operations dependent on the platform.

Compliance Impact

This vulnerability does not provide specific details about compliance impacts on standards like GDPR or HIPAA. The issue involves a DoS via notification template in JetBrains YouTrack, which could disrupt service availability but lacks direct evidence of data exposure or privacy violations.

Mitigation Strategies

Update JetBrains YouTrack to version 2026.2.19197 or later to address the DoS vulnerability in notification templates.

Hi! I’m here to help you understand CVE-2026-100274. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70