CVE-2026-75047 Denial of service in YouTrack

Medium 6.5 Published 17 Aug 2026 Updated 17 Aug 2026

Attackers can cause denial of service in JetBrains YouTrack by uploading a decompression bomb to the import endpoint.

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-2026-75047?

CVE-2026-75047 is a medium-severity denial of service vulnerability in Jetbrains Youtrack, published on 17 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In JetBrains YouTrack before 2026.2.18177 doS attack was possible via a decompression bomb in the import endpoint

Weakness: CWE-409

Which versions are affected by CVE-2026-75047?

It affects 1 product.

Products include Jetbrains Youtrack.

How do I fix CVE-2026-75047?

No fix has been published for CVE-2026-75047 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-75047 being exploited?

There is no known exploitation of CVE-2026-75047 in the wild and no public exploit code.

All Jetbrains Youtrack vulnerabilities

Sources

Also known as GHSA-cfpf-r4pf-9hjm.