CVE-2026-75045 Auth bypass in YouTrack

Critical 9.1 Published Updated

An unauthenticated attacker can download database backups by exploiting a shared draft signature vulnerability in JetBrains YouTrack.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-75045?

CVE-2026-75045 is a critical authentication bypass vulnerability in Jetbrains Youtrack, published on 17 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In JetBrains YouTrack before 2025.3.156085, 2026.1.13913, 2026.2.18112 an unauthenticated attacker could download database backups via shared draft signature

Weakness: CWE-288

Which versions are affected by CVE-2026-75045?

It affects 1 product.

Products include Jetbrains Youtrack.

How do I fix CVE-2026-75045?

No fix has been published for CVE-2026-75045 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-2026-75045 being exploited?

There is no known exploitation of CVE-2026-75045 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

All Jetbrains Youtrack vulnerabilities

Sources

Also known as GHSA-68v9-f358-h326.

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