CVE-2026-86497 Information disclosure in YouTrack
A project administrator can exfiltrate stored mailbox credentials by changing the mailbox host without re-authentication in JetBrains YouTrack.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86497?
CVE-2026-86497 is a medium-severity vulnerability in JetBrains YouTrack, published on 7 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
In JetBrains YouTrack before 2026.2.18769 changing a mailbox host without re-authentication allowed a project administrator to exfiltrate stored mailbox credentials
Weakness: CWE-201
Which versions are affected by CVE-2026-86497?
How do I fix CVE-2026-86497?
No fix has been published for CVE-2026-86497 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-86497 being exploited?
There is no known exploitation of CVE-2026-86497 in the wild and no public exploit code.
Sources
Also known as GHSA-wppj-v3g8-h62v.