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Medium severity4.3NVD Advisory· Published Jun 10, 2026· Updated Jun 12, 2026

CVE-2026-53440

CVE-2026-53440

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

5
  • Jenkins Project/Jenkins3 versions
    cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*+ 2 more
    • cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*range: <2.568
    • cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*range: <2.555.3
    • (no CPE)range: <=2.567, <=2.555.2 (LTS)
  • osv-coords2 versions
    pkg:apk/chainguard/jenkins-2.555pkg:bitnami/jenkins
    < 2.555.3-r0+ 1 more
    • (no CPE)range: < 2.555.3-r0
    • (no CPE)range: < 2.555.3

Patches

Vulnerability mechanics

References

1

News mentions

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