PT-2026-48425

CVE-2026-53440

Published

2026-06-10

Updated

2026-08-12

Description by

CVSS 3.1

4.3

Medium

MetricsAV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Jenkins versions prior to 2.568 Jenkins LTS versions prior to 2.555.3

Description The "Delegate to servlet container" security realm fails to validate that the from parameter is a safe destination for redirection after login. This allows attackers to redirect users to an external domain under their control, facilitating phishing attacks.

Recommendations Update to version 2.568 or later. Update to LTS version 2.555.3 or later.

Exploitability

Fix

Impacts

Vendors

Affected products

Weakness enumeration

CWE-601: URL Redirection to Untrusted Site (\'Open Redirect\')

Related identifiers

CVE-2026-53440

BDU:2026-15344

GHSA-92M7-4FPW-2WXM