CVE-2026-86493
Received Received - Intake

Improper Permission Checks in JetBrains YouTrack

Vulnerability report for CVE-2026-86493, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-07

Last updated on: 2026-09-07

Assigner: JetBrains s.r.o.

Description

In JetBrains YouTrack before 2026.2.18634 improper permission checks allowed read-only users to create and modify whiteboard cards

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-09-07
Last Modified
2026-09-07
Generated
2026-09-07
AI Q&A
2026-09-07
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
jetbrains youtrack to 2026.2.18634 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

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Executive Summary

This vulnerability in JetBrains YouTrack before version 2026.2.18634 allows users with read-only permissions to create and modify whiteboard cards. Normally, read-only users should not have these capabilities.

Impact Analysis

An attacker with read-only access could escalate privileges by creating or altering whiteboard cards, potentially leading to unauthorized data manipulation or exposure. The CVSS score of 6.5 indicates a medium severity risk.

Mitigation Strategies

Update JetBrains YouTrack to version 2026.2.18634 or later to address the improper permission checks affecting read-only users.

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EPSS Chart