{"cve":"CVE-2026-53440","nvd":{"published":"2026-06-10T14:16:36.990","modified":"2026-10-26T11:10:00.157","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","score":4.3},"cwes":["CWE-601"],"references":["https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3721"],"products":["jenkins:jenkins"],"source":"nvd","synced_at":"2026-10-26T11:33:08.859761529+00:00"},"epss":{"cve":"CVE-2026-53440","score":0.0023,"percentile":0.13683,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-92m7-4fpw-2wxm","url":"https://osv.dev/vulnerability/GHSA-92m7-4fpw-2wxm","summary":"Jenkins: Open Redirect phishing attacks possible via \"from\" parameter in \"Delegate to servlet container\"","modified":"2026-09-10T03:50:49.138744172Z","packages":[{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","ranges":["<2.555.3"],"fixed":["2.555.3"]},{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","ranges":[">=2.556 <2.568"],"fixed":["2.568"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}