Vulnerability · Published Aug 17, 2026 · Assigned by JetBrains
CVE-2026-75045
Critical 9.1
In plain English
A critical-severity authentication bypass in YouTrack from JetBrains. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS 3.1)9.1Critical
Exploit odds (30 days)0.5%top 59.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
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
Affected products (as reported)
Weakness: CWE-288 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N