{
"id": "GHSA-463r-5m89-4xfr",
"aliases": [
"CVE-2026-53437"
],
"details": "Jenkins 2.567 and earlier, LTS 2.555.2 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins when it contains tab or newline characters between `//`, allowing attackers to perform phishing attacks.",
"summary": "Jenkins Open Redirect Through Newline/Tab Characters in Redirect URL",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.555.3"
}
]
}
],
"package": {
"name": "org.jenkins-ci.main:jenkins-core",
"ecosystem": "Maven"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "2.556"
},
{
"fixed": "2.568"
}
]
}
],
"package": {
"name": "org.jenkins-ci.main:jenkins-core",
"ecosystem": "Maven"
}
}
],
"modified": "2026-08-27T15:31:26Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"
}
],
"published": "2026-06-10T15:31:31Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53437",
"type": "ADVISORY"
},
{
"url": "https://github.com/jenkinsci/jenkins/commit/b32f2f27a82ed187a34f55b05edcc4a83563d574",
"type": "WEB"
},
{
"url": "https://github.com/jenkinsci/jenkins/commit/8ef52891b07eb639b38271e4bab5dab3c0f10fda",
"type": "WEB"
},
{
"url": "https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3711+3755",
"type": "WEB"
},
{
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53437.json",
"type": "WEB"
},
{
"url": "https://github.com/jenkinsci/jenkins",
"type": "PACKAGE"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2487544",
"type": "WEB"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-53437",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:60259",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:60256",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:60254",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:60252",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:60251",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:60250",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:60249",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:60248",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:60247",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:60246",
"type": "WEB"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:60239",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-601"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": "2026-06-10T14:16:36Z",
"github_reviewed_at": "2026-08-13T20:49:09Z"
}
}