CVE-2026-86478

CriticalCVSS 9.8/10Last modified Sep 9, 2026

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

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-290

Affected software

No affected versions have been published.

Timeline

Published
Sep 7, 2026
Last modified
Sep 9, 2026
NVD status
Deferred

Related CVEs from 2026

CVE-2026-864798.1In JetBrains YouTrack before 2026.2.18788, 2026.1.14055, 2025.3.161254 missing authorisation allowed access to restricted REST API resourcCVE-2026-864809.8In JetBrains Hub before 2026.2.52442 an unauthenticated attacker could register a trusted service and gain superuser privilegesCVE-2026-864814.3In JetBrains YouTrack before 2026.2.18634 signed URL reuse allowed disclosure of restricted project iconsCVE-2026-864828.8In JetBrains YouTrack before 2026.2.18634, insufficient validation of role assignments allowed privilege escalationCVE-2026-864835.4In JetBrains YouTrack before 2026.2.18634 stored XSS via a custom field on Agile board cards was possibleCVE-2026-864844.6In JetBrains YouTrack before 2026.2.18634 angularJS template injection in assignee names led to stored XSSCVE-2026-864853.3In JetBrains YouTrack before 2026.2.18634 iP spoofing via HTTP headers allowed forged Bitbucket webhooksCVE-2026-864863.7In JetBrains YouTrack before 2026.2.18634 the generic VCS webhook handler failed open when its secret was blankCVE-2026-864873.1In JetBrains YouTrack before 2026.2.18634 a crafted WebSocket message allowed read-only whiteboard users to modify canvas contentCVE-2026-864886.5In JetBrains YouTrack before 2026.2.18634 iDOR via the watchRules and issueListConfig endpoints exposed private saved searchesCVE-2026-864896.5In JetBrains YouTrack before 2026.2.18634 an IDOR in the user profile API disclosed private issues and starred folders across organizationsCVE-2026-86499.8Improper Neutralization of Special Elements in Data Query Logic vulnerability in Progress MOVEit Transfer (Custom Reports modules). This is
CVE-2026-86478: Critical severity, CVSS 9.8 | Vulnix