Name: CVE-2026-53440: URL Redirection to Untrusted Site
Creator: Rapid7
Published: 2026-06-10T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-53440, CWE-601, CVSS 4.3, EPSS 0.00364

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.

CVSS Details

CVSS 3.1 Base Score: 4.3
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Freebsd	—	Upgrade jenkinsUpgrade jenkins-lts	Jun 18, 2026	Jun 17, 2026
Jenkins 2026 06 10	—	Upgrade Jenkins LTS to version 2.555.3Upgrade Jenkins to version 2.568Upgrade Jenkins to the latest versionUpgrade Jenkins LTS to the latest version	Jun 11, 2026	Jun 10, 2026

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CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence