Improper handling of highly compressed data in YouTrack - CVE-2026-75047
Published: August 17, 2026
Vulnerability identifier: #VU143872
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-75047
CWE-ID: CWE-409
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to a decompression bomb in the import endpoint when processing compressed import data. A remote attacker can submit a specially crafted import payload to cause a denial of service.
Affected software
YouTrack
How to mitigate CVE-2026-75047
Install security update from vendor's website.
YouTrack - update to 2026.2.18177