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bdu:2025-04959

BIT-jenkins-2025-27625

Affected: Bitnami: jenkins

In Jenkins 2.499 and earlier, LTS 2.492.1 and earlier, redirects starting with backslash (`\`) characters are considered safe, allowing attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site, because browsers interpret these characters as part of scheme-relative redirects.

EUVD-2026-221129

fkie_cve-2025-27625

GHSA-8hmv-92wm-39ch — Jenkins Open Redirect vulnerability

Affected: Maven: org.jenkins-ci.main:jenkins-core

Various features in Jenkins redirect users to partially user-controlled URLs inside Jenkins. To prevent open redirect vulnerabilities, Jenkins limits redirections to safe URLs (neither absolute nor scheme-relative/network-path reference).

In Jenkins 2.499 and earlier, LTS 2.492.1 and earlier, redirects starting with backslash (`\`) characters are considered safe.

This allows attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site, because browsers interpret these characters as part of scheme-relative redirects.

Jenkins 2.500, LTS 2.492.2 considers redirects to URLs starting with backslash (`\`) characters to be unsafe, rejecting such redirects.

WID-SEC-W-2025-0489 — Jenkins: Mehrere Schwachstellen

Ein entfernter anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Jenkins ausnutzen, um Informationen preiszugeben, Daten zu manipulieren und Spoofing-Angriffe durchzuführen.