CVE-2026-86478

CRITICAL 9.8CVE-2026-86478 · Published 07/09/2026 · updated 09/09/2026

In short

CVE-2026-86478 is a CRITICAL (CVSS 9.8) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 0.61%, higher than 49.0% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

Description

In JetBrains YouTrack before 2025.3.161254, 2026.1.14042 improper authentication in YouTrack Helpdesk allowed unauthenticated account takeover via a self-asserted email address

References

jetbrains.com/privacy-security/issues-fixed

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