What is CVE-2026-86487?

CVE-2026-86487 is a low-severity vulnerability in Jetbrains Youtrack, classified under Incorrect Authorization. CVSS score: 3.1/10. Published 2026-09-07.

How severe is CVE-2026-86487?

Low severity. CVSS v3 base score is 3.1 out of 10.

Auth bypass in Jetbrains Youtrack

CVE-2026-86487

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

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Jetbrains Youtrack

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

cve@jetbrains.com

Frequently asked questions

What is CVE-2026-86487?: CVE-2026-86487 is a low-severity vulnerability in Jetbrains Youtrack, classified under Incorrect Authorization. CVSS score: 3.1/10. Published 2026-09-07.
How severe is CVE-2026-86487?: Low severity. CVSS v3 base score is 3.1 out of 10.