CVE-2026-86498 Missing authorization in YouTrack
Attackers can modify linked entities in JetBrains YouTrack via PUT requests without having the required update permission.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86498?
CVE-2026-86498 is a high-severity missing authorization vulnerability in JetBrains YouTrack, published on 7 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In JetBrains YouTrack before 2025.3.160480, 2026.1.14047 pUT requests on link sub-resources allowed modification linked entities without update permission
Weakness: CWE-863
Which versions are affected by CVE-2026-86498?
How do I fix CVE-2026-86498?
No fix has been published for CVE-2026-86498 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-86498 being exploited?
There is no known exploitation of CVE-2026-86498 in the wild and no public exploit code.
Sources
Also known as GHSA-jgfw-8cqw-4r27.