Unauthorized Access to Project Comments in JetBrains YouTrack
CVE-2026-100268

7.7HIGH

Key Information:

Vendor

Jetbrains
Status
Youtrack
Vendor
CVE Published:
30 September 2026

What is CVE-2026-100268?

In JetBrains YouTrack, prior to version 2026.2.19197, an access control vulnerability exists that allows project administrators the unintended ability to read comments from other projects through notification templates. This flaw poses a significant risk by potentially exposing sensitive information and breaching project confidentiality.

Affected Version(s)

YouTrack 0 < 2026.2.19197

References

https://www.jetbrains.com/privacy-security/issues-fixed/

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.