{
  "cveId": "CVE-2026-54789",
  "url": "https://patchblox.com/security/cve/CVE-2026-54789",
  "summary": "CVE-2026-54789 is fixed in 7 products on 1 platform, first by RHSA-2026:69719, released August 21, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "libapache2-mod-auth-openidc: mod_auth_openidc is an OpenID Certified authentication and authorization module for the Apache 2.x HTTP server that i...",
  "description": "mod_auth_openidc is an OpenID Certified authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. Prior to 2.4.19.4, an out-of-bounds read and a one-byte out-of-bounds write exist in the state-cookie parser of \u0060mod_auth_openidc\u0060. The issue is fixed in version 2.4.19.4 by stopping the scan at the string terminator so a value-less token is rejected. No in-product workarounds are available. As a stop-gap, an upstream reverse proxy or WAF that rejects or normalizes malformed \u0060Cookie\u0060 headers (tokens lacking \u0060=\u0060) can reduce exposure, but upgrading is the recommended remediation.",
  "published": "2026-08-21T16:13:23Z",
  "severity": "high",
  "cvss": 8.2,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
  "epss": 0.00488,
  "epssPercentile": 0.42318,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "apache2-mod_auth_openidc",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "2.4.17.1-160000.2.1",
      "fix": "OPENSUSE-SU-2026:21717-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21717-1",
      "released": "2026-09-01T09:57:24Z"
    },
    {
      "platform": "linux",
      "product": "apache2-mod_auth_openidc",
      "release": "sles 15.6",
      "fixedVersion": "2.4.17.1-150600.16.20.1",
      "fix": "SUSE-SU-2026:3952-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3952-1",
      "released": "2026-09-03T07:43:49Z"
    },
    {
      "platform": "linux",
      "product": "apache2-mod_auth_openidc",
      "release": "sles 15.7",
      "fixedVersion": "2.4.17.1-150600.16.20.1",
      "fix": "SUSE-SU-2026:3952-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-3952-1",
      "released": "2026-09-03T07:43:49Z"
    },
    {
      "platform": "linux",
      "product": "apache2-mod_auth_openidc",
      "release": "sles 16.0",
      "fixedVersion": "2.4.17.1-160000.2.1",
      "fix": "SUSE-SU-2026:23593-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23593-1",
      "released": "2026-09-01T09:55:56Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "RHEL 8",
      "fixedVersion": "0:0.6.1-5.module\u002Bel8.10.0\u002B24880\u002B4db9166e",
      "fix": "RHSA-2026:77369",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-77369",
      "released": "2026-10-08T22:22:13Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "almalinux 8",
      "fixedVersion": "0.6.1-5.module_el8.10.0\u002B4297\u002B63ae3533",
      "fix": "ALSA-2026:77369",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-77369",
      "released": "2026-10-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "ol 8",
      "fixedVersion": "0:0.6.1-5.module\u002Bel8.10.0\u002B91060\u002Be975931f",
      "fix": "ELSA-2026-77369",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-77369",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "rocky 8",
      "fixedVersion": "0:0.6.1-5.module\u002Bel8.10.0\u002B40373\u002B8a3f15d2",
      "fix": "RLSA-2026:77369",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-77369",
      "released": "2026-11-07T00:39:57Z"
    },
    {
      "platform": "linux",
      "product": "cjose-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:0.6.1-5.module\u002Bel8.10.0\u002B24880\u002B4db9166e",
      "fix": "RHSA-2026:77369",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-77369",
      "released": "2026-10-08T22:22:13Z"
    },
    {
      "platform": "linux",
      "product": "cjose-devel",
      "release": "almalinux 8",
      "fixedVersion": "0.6.1-5.module_el8.10.0\u002B4297\u002B63ae3533",
      "fix": "ALSA-2026:77369",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-77369",
      "released": "2026-10-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "cjose-devel",
      "release": "ol 8",
      "fixedVersion": "0:0.6.1-5.module\u002Bel8.10.0\u002B91060\u002Be975931f",
      "fix": "ELSA-2026-77369",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-77369",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "libapache2-mod-auth-openidc",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "2.4.12.3-2\u002Bdeb12u5",
      "fix": "DEBIAN-CVE-2026-54789",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-54789",
      "released": "2026-08-21T23:37:15Z"
    },
    {
      "platform": "linux",
      "product": "libapache2-mod-auth-openidc",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2.4.17-1\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-54789",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-54789",
      "released": "2026-08-21T23:37:15Z"
    },
    {
      "platform": "linux",
      "product": "libapache2-mod-auth-openidc",
      "release": "Debian 14",
      "fixedVersion": "2.4.19.4-1",
      "fix": "DEBIAN-CVE-2026-54789",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-54789",
      "released": "2026-08-21T23:37:15Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "RHEL 10",
      "fixedVersion": "2.4.15-4.el10_0.2",
      "fix": "RHSA-2026:69719",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-69719",
      "released": "2026-08-21T16:13:23Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "RHEL 8",
      "fixedVersion": "0:2.4.9.4-9.module\u002Bel8.10.0\u002B24880\u002B4db9166e",
      "fix": "RHSA-2026:77369",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-77369",
      "released": "2026-10-08T22:22:13Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "RHEL 9",
      "fixedVersion": "0:2.4.16.11-1.el9_8.1",
      "fix": "RHSA-2026:79177",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-79177",
      "released": "2026-10-09T22:37:46Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "almalinux 10",
      "fixedVersion": "2.4.16.11-1.el10_2.1",
      "fix": "ALSA-2026:75581",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-75581",
      "released": "2026-10-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "almalinux 8",
      "fixedVersion": "2.4.9.4-9.module_el8.10.0\u002B4297\u002B63ae3533",
      "fix": "ALSA-2026:77369",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-77369",
      "released": "2026-10-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "almalinux 9",
      "fixedVersion": "2.4.16.11-1.el9_8.1",
      "fix": "ALSA-2026:79177",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-79177",
      "released": "2026-10-08T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "amzn 2023",
      "fixedVersion": "2.4.16.11-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2155",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2155",
      "released": "2026-09-14T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "ol 10",
      "fixedVersion": "0:2.4.16.11-1.el10_2.1",
      "fix": "ELSA-2026-75581",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-75581",
      "released": "2026-10-05T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "ol 8",
      "fixedVersion": "0:2.4.9.4-9.module\u002Bel8.10.0\u002B91060\u002Be975931f",
      "fix": "ELSA-2026-77369",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-77369",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "ol 9",
      "fixedVersion": "0:2.4.16.11-1.el9_8.1",
      "fix": "ELSA-2026-79177",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-79177",
      "released": "2026-11-07T00:52:27Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "rocky 10",
      "fixedVersion": "0:2.4.16.11-1.el10_2.1",
      "fix": "RLSA-2026:75581",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-75581",
      "released": "2026-10-06T12:10:42Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "rocky 8",
      "fixedVersion": "0:2.4.9.4-9.module\u002Bel8.10.0\u002B40373\u002B8a3f15d2",
      "fix": "RLSA-2026:77369",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-77369",
      "released": "2026-11-07T00:39:57Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "rocky 9",
      "fixedVersion": "0:2.4.16.11-1.el9_8.1",
      "fix": "RLSA-2026:79177",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-79177",
      "released": "2026-11-07T00:39:57Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2.4.16.11-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2155",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2155",
      "released": "2026-09-14T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "2.4.16.11-1.amzn2023.0.2",
      "fix": "ALAS2023-2026-2155",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2155",
      "released": "2026-09-14T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}