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In JetBrains YouTrack before 2025.3.160480, 
2026.1.14047 pUT requests on link sub-resources allowed modification linked entities without update permission

CVE-2026-86498 describes an authorization bypass vulnerability in JetBrains YouTrack prior to versions 2025.3.160480 and 2026.1.14047. Specifically, PUT requests targeting link sub-resources could modify linked entities even if the user lacks update permissions. This issue is classified under CWE-863 (Incorrect Authorization). The vulnerability has a CVSS 3.1 score of 7.7, indicating high severity, with network attack vector, low attack complexity, requiring low privileges but no user interaction, and impacts integrity with a scope change.

Detailed information about In JetBrains YouTrack before 2025.3.160480, 2026.1.14047 pUT requests on link sub-resources allowed modification linked entities with

In JetBrains YouTrack before 2025.3.160480, 2026.1.14047 pUT requests on link sub-resources allowed modification linked entities without update… (CVE-2026-86498) - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2026-86498: CWE-863 in JetBrains YouTrack

youtrack

CVE-2026-86498 is a high-severity vulnerability in JetBrains YouTrack that affects versions before 2025.3.160480 and 2026.1.14047. It allows PUT requests on link sub-resources to modify linked entities without requiring update permissions, violating proper access control.

This vulnerability (CWE-863) in JetBrains YouTrack permits unauthorized modification of linked entities via PUT requests on link sub-resources. Specifically, in versions prior to 2025.3.160480 and 2026.1.14047, the system does not properly enforce update permissions when handling these requests, enabling users with limited privileges to alter linked entities improperly.

Detailed information about CVE-2026-86498: CWE-863 in JetBrains YouTrack affecting JetBrains YouTrack. Get real-time updates, technical details, and mitigation 

CVE-2026-86498: CWE-863 in JetBrains YouTrack - Live Threat Intelligence - Threat Radar | OffSeq.com


CVE-2026-86498: CWE-863 in JetBrains YouTrackCVE-2026-86498 0 In JetBrains YouTrack before 2025.3.160480, 2026.1.14047 pUT requests on link sub-resources allowed modification linked entities without update permission HighVulnerability#gcve #osv #ghsa-jgfw-8cqw-4r27 Join the discussion	GCVE Database	09/07/2026, 16:26:48 UTC Added: 09/08/2026, 04:37:39 UTC
CVE-2026-86498: CWE-863 in JetBrains YouTrackCVE-2026-86498 0 CVE-2026-86498 is a high-severity vulnerability in JetBrains YouTrack that affects versions before 2025.3.160480 and 2026.1.14047. It allows PUT requests on link sub-resources to modify linked entities without requiring update permissions, violating proper access control. HighVulnerability#cve #cve-2026-86498 #cwe-863 Join the discussion	CVE Database V5	09/07/2026, 16:26:48 UTC Added: 09/07/2026, 16:37:47 UTC

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