CVE-2026-75045
Unauthenticated download of YouTrack database backups via shared draft signature.
Is CVE-2026-75045 being exploited?
Not confirmed. CVE-2026-75045 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.30% probability of exploitation in the next 30 days.
How severe is CVE-2026-75045?
CVE-2026-75045 is rated Critical with a CVSS score of 9.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-75045?
Yes. A fix has been recorded for CVE-2026-75045. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-75045 affect?
CVE-2026-75045 affects JetBrains YouTrack before 2025.3.156085, JetBrains YouTrack before 2026.1.13913, JetBrains YouTrack before 2026.2.18112. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-75045?
Upgrade YouTrack to the fixed versions immediately or follow vendor mitigations.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated attacker can download DB backups, exposing sensitive data, credentials, and enabling data exfiltration.
Immediate action required
- affected< 2025.3.156085, 2026.1.13913, 2026.2.18112
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.