{
  "cveId": "CVE-2019-3877",
  "url": "https://patchblox.com/security/cve/CVE-2019-3877",
  "summary": "CVE-2019-3877 is fixed in 3 products on 1 platform, first by libapache2-mod-auth-mellon 0.13.1-1ubuntu0.1, released March 21, 2019. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "mod_auth_mellon: The mod_auth_mellon module for the Apache HTTP Server is an authentication service that implements the SAML 2.0 feder...",
  "description": "The mod_auth_mellon module for the Apache HTTP Server is an authentication service that implements the SAML 2.0 federation protocol. The module grants access based on the attributes received in assertions generated by an IdP server.\n\nSecurity Fix(es):\n\n* mod_auth_mellon: open redirect in logout url when using URLs with backslashes (CVE-2019-3877)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 8.1 Release Notes linked from the References section.",
  "published": "2019-03-21T17:00:00Z",
  "severity": "Moderate",
  "cvss": 6.1,
  "epss": 0.02121,
  "epssPercentile": 0.81987,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libapache2-mod-auth-mellon",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.13.1-1ubuntu0.1",
      "fix": "libapache2-mod-auth-mellon 0.13.1-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libapache2-mod-auth-mellon-0.13.1-1ubuntu0.1",
      "released": "2019-03-21T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "libapache2-mod-auth-mellon",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.14.2-1ubuntu1",
      "fix": "libapache2-mod-auth-mellon 0.14.2-1ubuntu1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libapache2-mod-auth-mellon-0.14.2-1ubuntu1",
      "released": "2019-03-21T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_mellon",
      "release": "RHEL 8",
      "fixedVersion": "0:0.14.0-9.el8",
      "fix": "RHSA-2019:3421",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-3421",
      "released": "2019-11-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_mellon",
      "release": "ol 8",
      "fixedVersion": "0:0.14.0-9.el8",
      "fix": "ELSA-2019-3421",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-3421",
      "released": "2019-11-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_mellon-diagnostics",
      "release": "RHEL 8",
      "fixedVersion": "0:0.14.0-9.el8",
      "fix": "RHSA-2019:3421",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2019-3421",
      "released": "2019-11-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_mellon-diagnostics",
      "release": "ol 8",
      "fixedVersion": "0:0.14.0-9.el8",
      "fix": "ELSA-2019-3421",
      "url": "https://patchblox.com/security/fix/linux/elsa-2019-3421",
      "released": "2019-11-14T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}