CVE-2026-86486
Low
Description
In JetBrains YouTrack before 2026.2.18634 the generic VCS webhook handler failed open when its secret was blank
SeverityLow
CVSS3.7
Exploit probability—
Product
YouTrack
PublishedSep 7, 2026
First seenSep 7, 2026
Weakness typeCWE-306Missing authentication for critical function
How to fix
Update
- JetBrains YouTrack2026.2.18634 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| JetBrains YouTrack | v < 2026.2.18634 | 2026.2.18634 |
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