Authorization Bypass in JetBrains YouTrack Allows Unauthorized Access
CVE-2026-103488

7.1HIGH

Key Information:

Vendor

Jetbrains
Status
Youtrack
Vendor
CVE Published:
1 October 2026

What is CVE-2026-103488?

In JetBrains YouTrack versions prior to 2026.2.19422, a security vulnerability exists that allows authenticated users to circumvent authorization controls. This flaw enables these users to add themselves to project teams, thereby gaining unauthorized access to restricted issues, which could lead to data exposure and potential misuse of sensitive project information.

Affected Version(s)

YouTrack 0 < 2026.2.19422

References

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

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.