Jenkins 2.299 and earlier, LTS 2.289.1 and earlier does not invalidate the previous session on login.
https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2371
http://www.openwall.com/lists/oss-security/2021/06/30/1
Source: Mitre, NVD
Published: 2021-06-30
Updated: 2023-10-25
Base Score: 5.1
Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High