CVE-2026-86493: CWE-863 in JetBrains YouTrack
A vulnerability in JetBrains YouTrack before version 2026.2.18634 allows read-only users to create and modify whiteboard cards due to improper permission checks. This issue is categorized under CWE-863, which relates to improper authorization. The vulnerability has a CVSS score of 6.5, indicating a medium severity level. No official patch or remediation guidance has been provided yet by the vendor. The vulnerability does not impact confidentiality or availability but allows unauthorized modification of data, affecting integrity.
AI Analysis
Technical Summary
CVE-2026-86493 is an authorization bypass vulnerability in JetBrains YouTrack versions prior to 2026.2.18634. It arises from improper permission checks that permit users with read-only access to create and modify whiteboard cards, violating intended access controls. The flaw is classified under CWE-863 (Incorrect Authorization). The CVSS 3.1 base score is 6.5 (medium), with an attack vector of network, low attack complexity, requiring low privileges, no user interaction, and impacting integrity only. No vendor advisory or patch information is currently available.
Potential Impact
The vulnerability allows read-only users to perform unauthorized modifications on whiteboard cards, impacting the integrity of data within YouTrack. There is no impact on confidentiality or availability. This could lead to unauthorized changes in project tracking information, potentially causing confusion or disruption in workflows.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict read-only user permissions where possible and monitor for unauthorized changes to whiteboard cards.
CVE-2026-86493: CWE-863 in JetBrains YouTrack
Description
A vulnerability in JetBrains YouTrack before version 2026.2.18634 allows read-only users to create and modify whiteboard cards due to improper permission checks. This issue is categorized under CWE-863, which relates to improper authorization. The vulnerability has a CVSS score of 6.5, indicating a medium severity level. No official patch or remediation guidance has been provided yet by the vendor. The vulnerability does not impact confidentiality or availability but allows unauthorized modification of data, affecting integrity.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-86493 is an authorization bypass vulnerability in JetBrains YouTrack versions prior to 2026.2.18634. It arises from improper permission checks that permit users with read-only access to create and modify whiteboard cards, violating intended access controls. The flaw is classified under CWE-863 (Incorrect Authorization). The CVSS 3.1 base score is 6.5 (medium), with an attack vector of network, low attack complexity, requiring low privileges, no user interaction, and impacting integrity only. No vendor advisory or patch information is currently available.
Potential Impact
The vulnerability allows read-only users to perform unauthorized modifications on whiteboard cards, impacting the integrity of data within YouTrack. There is no impact on confidentiality or availability. This could lead to unauthorized changes in project tracking information, potentially causing confusion or disruption in workflows.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict read-only user permissions where possible and monitor for unauthorized changes to whiteboard cards.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- JetBrains
- Date Reserved
- 2026-09-07T16:13:37.856Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9ee859acd9273b49f0e41c
Added to database: 09/07/2026, 16:37:45 UTC
Last enriched: 09/07/2026, 16:54:09 UTC
Last updated: 09/08/2026, 00:20:19 UTC
Views: 8
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