A AegiFlow
MEDIUMCVSS 4.3EPSS 0.2%

CVE-2026-53440

CVE-2026-53440 updated by NVD

Published
2026-06-10
Modified
2026-10-28
EPSS percentile
15%
Sources
github-advisory, nvd

Summary

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.

Affected packages

EcosystemPackageAffected versionsFixed versions
Mavenorg.jenkins-ci.main:jenkins-core—2.555.3, 2.568

Remediation: Upgrade to 2.555.3 or later.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

CVE® is a registered trademark of The MITRE Corporation. CVE content reproduced under the CVE Terms of Use; copyright designation © MITRE.

EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.