Authorization Flaw in JetBrains YouTrack Affecting Issue Tagging
CVE-2026-123335

3.5LOW

Key Information:

Vendor

Jetbrains
Status
Youtrack
Vendor
CVE Published:
6 November 2026

What is CVE-2026-123335?

An authorization vulnerability in JetBrains YouTrack allows users to attach tags to any issue without proper authorization checks. This flaw exists in YouTrack versions prior to 2026.2.19562, 2026.1.14137, and 2025.3.169041. Attackers could exploit this issue to manipulate issue tagging, potentially leading to unauthorized data exposure and disruption of project organization. Users are recommended to update to the latest version to mitigate the risk associated with this vulnerability.

Affected Version(s)

YouTrack 0 < 2026.2.19562, 2026.1.14137, 2025.3.169041

References

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

CVSS V3.1

Score:
3.5
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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