CVE-2026-86498

Severity: high (CVSS 7.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-07 · updated 2026-09-08
Weakness: CWE-863

Description

In JetBrains YouTrack before 2025.3.160480, 2026.1.14047 pUT requests on link sub-resources allowed modification linked entities without update permission

Affected products

JetBrains YouTrack: before 2025.3.160480, 2026.1.14047 — fixed in 2026.1.14047, 2025.3.160480

How to fix

Upgrade to a fixed version: JetBrains YouTrack 2026.1.14047, 2025.3.160480. Check the vendor advisory for mitigations.

References

https://www.jetbrains.com/privacy-security/issues-fixed/

Get alerted when CVE-2026-86498 or the next vulnerability affects your stack