CVE-2026-100273 Auth bypass in YouTrack
An authorization bypass in the scripts debugger allows attackers to execute arbitrary code on JetBrains YouTrack instances.
- 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-2026-100273?
CVE-2026-100273 is a high-severity authentication bypass vulnerability in Jetbrains Youtrack, published on 30 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In JetBrains YouTrack before 2026.2.19197 authorisation bypass in the scripts debugger allowed arbitrary code execution
Weakness: CWE-863
Which versions are affected by CVE-2026-100273?
It affects 1 product.
Products include Jetbrains Youtrack.
How do I fix CVE-2026-100273?
No fix has been published for CVE-2026-100273 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-100273 being exploited?
There is no known exploitation of CVE-2026-100273 in the wild and no public exploit code.
Other vulnerabilities in Jetbrains Youtrack
Sources
Also known as GHSA-3c9g-jqwf-qrr8.