JetBrains Rider before 2019.1.2 was using an unsigned JetBrains.Rider.Unity.Editor.Plugin.Repacked.dll file.
https://blog.jetbrains.com/blog/2019/09/26/jetbrains-security-bulletin-q2-2019/
Source: Mitre, NVD
Published: 2019-10-01
Updated: 2026-06-17
Base Score: 4.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.00001