CVE-2026-53440
MEDIUM
NVD
CVSS Score
4.3
Severity
MEDIUM
Published
Jun 10, 2026
Vendor
unknown
Description
Jenkins 2.567 and earlier, LTS 2.555.2 and earlier does not ensure that the "from" parameter in the "Delegate to servlet container" security realm is safe to redirect to after login, allowing attackers to perform phishing attacks by redirecting users to an attacker-controlled domain.