Information Disclosure in JetBrains YouTrack Due to Mailbox Vulnerability
CVE-2026-123324

7.7HIGH

Key Information:

Vendor

Jetbrains
Status
Youtrack
Vendor
CVE Published:
6 November 2026

What is CVE-2026-123324?

A vulnerability in JetBrains YouTrack allows for unauthorized information disclosure through the message history of shared mailboxes. Affected versions prior to 2026.2.19562 are susceptible to this flaw, potentially exposing sensitive information to unauthorized users. It is critical to upgrade to the latest version to mitigate these security risks.

Affected Version(s)

YouTrack 0 < 2026.2.19562

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

.