CVE-2026-86496: CWE-862 in JetBrains YouTrack
Description
CVE-2026-86496 is a medium severity vulnerability in JetBrains YouTrack before version 2026.2.18769. It involves missing access control on Helpdesk authorized reporters, which results in exposure of reporter email addresses. The vulnerability does not allow modification or denial of service but does impact confidentiality of reporter information.
CVSS v3.1
Score 4.3medium
Affected software
JetBrains
YouTrack
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-862) in JetBrains YouTrack versions prior to 2026.2.18769 is due to missing access control checks on Helpdesk authorized reporters. This flaw allows unauthorized users to access reporter email addresses, exposing sensitive information. The CVSS 3.1 base score is 4.3, reflecting low complexity and network attack vector but limited impact confined to confidentiality. There is no indication of active exploitation in the wild. No official patch link is provided in the data, but the fixed version is 2026.2.18769.
Potential Impact
The vulnerability exposes reporter email addresses to unauthorized parties, impacting confidentiality. There is no impact on integrity or availability. This could lead to privacy concerns or targeted phishing but does not allow system compromise or data modification.
Mitigation Recommendations
Upgrade JetBrains YouTrack to version 2026.2.18769 or later where the access control issue is fixed. Since this is a self-hosted product, administrators should apply the official update once available. Patch status is confirmed by the fixed version number; no additional vendor advisory content is provided.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-09-07T16:13:38.834Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a9ee85bacd9273b49f0e43e
Added to database: 09/07/2026, 16:37:47 UTC
Last enriched: 09/15/2026, 01:18:42 UTC
Last updated: 10/21/2026, 13:22:13 UTC
Views: 73
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