Jenkins Amazon EC2 Plugin 1.50.1 and earlier does not validate SSH host keys when connecting agents, enabling man-in-the-middle attacks.
https://jenkins.io/security/advisory/2020-05-06/#SECURITY-381
http://www.openwall.com/lists/oss-security/2020/05/06/3
Source: Mitre, NVD
Published: 2020-05-06
Updated: 2026-06-17
Base Score: 6.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Severity: Medium
Base Score: 5.6
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS: 0.001