CVE-2026-100264 Information disclosure in YouTrack

What is CVE-2026-100264?

CVE-2026-100264 is a low-severity 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 2026.2.18991 stored SMTP server credentials could be disclosed by changing the server host

Weakness: CWE-522

Which versions are affected by CVE-2026-100264?

It affects 1 product.

Products include Jetbrains Youtrack.

How do I fix CVE-2026-100264?

No fix has been published for CVE-2026-100264 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-100264 being exploited?

There is no known exploitation of CVE-2026-100264 in the wild and no public exploit code.

Other vulnerabilities in Jetbrains Youtrack

• CVE-2026-62422 Auth bypass in YouTrack Critical 10.0
• CVE-2022-24442 Code injection in n/a Critical 9.8
• CVE-2021-43185 Other in n/a Critical 9.8
• CVE-2021-25770 Code injection in n/a Critical 9.8
• CVE-2019-12850 SQL injection in n/a Critical 9.8

All Jetbrains Youtrack vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-gr9x-57pc-647p.