CVE-2026-100278 Missing authorization in YouTrack
Users with restricted permissions can edit and hide other users' comments in JetBrains YouTrack due to missing authorization checks.
- 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-2026-100278?
CVE-2026-100278 is a medium-severity missing authorization vulnerability in Jetbrains Youtrack, published on 30 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
In JetBrains YouTrack before 2026.2.19197 users with restricted permission could edit and hide other users' comments
Weakness: CWE-863
Which versions are affected by CVE-2026-100278?
It affects 1 product.
Products include Jetbrains Youtrack.
How do I fix CVE-2026-100278?
No fix has been published for CVE-2026-100278 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-2026-100278 being exploited?
There is no known exploitation of CVE-2026-100278 in the wild and no public exploit code.
Other vulnerabilities in Jetbrains Youtrack
Sources
Also known as GHSA-7p7q-vpq8-mw97.