CVE-2026-86487
Received Received - Intake

Read-Only Whiteboard Canvas Modification in JetBrains YouTrack

Publication date: 2026-09-07

Last updated on: 2026-09-07

Assigner: JetBrains s.r.o.

Description
In JetBrains YouTrack before 2026.2.18634 a crafted WebSocket message allowed read-only whiteboard users to modify canvas content

CVSS Scores

EPSS Scores

Probability:
Percentile:

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
CVE-2026-86487
EUVD
EUVD-2026-72503

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
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

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability in JetBrains YouTrack before version 2026.2.18634 allows read-only whiteboard users to modify canvas content by sending a specially crafted WebSocket message. This is a privilege escalation issue where unauthorized users gain write access.

Impact Analysis

If exploited, this vulnerability could allow attackers with read-only access to alter whiteboard content, potentially leading to misinformation, data tampering, or unauthorized modifications in collaborative environments.

Mitigation Strategies

Update JetBrains YouTrack to version 2026.2.18634 or later to address the vulnerability.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-86487. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart