CVE-2026-86497 PUBLISHED

Assigner: JetBrains
Reserved: 07.09.2026 Published: 07.09.2026 Updated: 07.09.2026

In JetBrains YouTrack before 2026.2.18769 changing a mailbox host without re-authentication allowed a project administrator to exfiltrate stored mailbox credentials

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
CVSS Score: 6.8

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	High	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	JetBrains
Product	YouTrack
Versions	Default: unaffected affected from 0 to 2026.2.18769 (excl.)

References

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

Problem Types

CWE-201