Insufficiently protected credentials in YouTrack - CVE-2026-100264
Published: October 2, 2026
Vulnerability identifier: #VU153144
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-100264
CWE-ID: CWE-522
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose stored SMTP server credentials.
The vulnerability exists due to insufficiently protected credentials in the SMTP server configuration when changing the SMTP server host. A remote user can change the SMTP server host to disclose stored SMTP server credentials.
Affected software
YouTrack
How to mitigate CVE-2026-100264
Install security update from vendor's website.
YouTrack - update to 2026.2.18991