{
  "cveId": "CVE-2026-53939",
  "url": "https://patchblox.com/security/cve/CVE-2026-53939",
  "summary": "CVE-2026-53939 is fixed in 5 products on 1 platform, first by RHSA-2026:83224, released September 8, 2026. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "cjose: CJose is C library implementing the Javascript Object Signing and Encryption (JOSE)",
  "description": "CJose is C library implementing the Javascript Object Signing and Encryption (JOSE).  \n\nSecurity Fix(es):  \n\n  * cjose: OpenIDC/cjose uses all-zero Content Encryption Key for AES-CBC-HMAC JWE encryption (CVE-2026-53939)\n\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.",
  "published": "2026-09-08T23:36:13Z",
  "severity": "critical",
  "cvss": 9.1,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
  "epss": 0.00245,
  "epssPercentile": 0.15831,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "cjose",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "0.6.2.1-1\u002Bdeb12u2",
      "fix": "DEBIAN-CVE-2026-53939",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-53939",
      "released": "2026-09-12T12:34:33Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "0.6.2.3-1\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2026-53939",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-53939",
      "released": "2026-09-12T12:34:33Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "Debian 14",
      "fixedVersion": "0.6.2.7-1",
      "fix": "DEBIAN-CVE-2026-53939",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-53939",
      "released": "2026-09-12T12:34:33Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "RHEL 10",
      "fixedVersion": "0.6.2.2-7.el10_0.2",
      "fix": "RHSA-2026:83224",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-83224",
      "released": "2026-09-08T23:36:13Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "RHEL 8",
      "fixedVersion": "0:0.6.1-6.module\u002Bel8.10.0\u002B25174\u002B9c399f63",
      "fix": "RHSA-2026:92157",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-92157",
      "released": "2026-10-30T22:08:02Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "RHEL 9",
      "fixedVersion": "0:0.6.1-17.el9_8.2",
      "fix": "RHSA-2026:92145",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-92145",
      "released": "2026-10-30T22:09:46Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "almalinux 10",
      "fixedVersion": "0.6.2.2-7.el10_2.2",
      "fix": "ALSA-2026:80605",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-80605",
      "released": "2026-11-07T00:39:57Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "almalinux 8",
      "fixedVersion": "0.6.1-6.module_el8.10.0\u002B4330\u002B15616d81",
      "fix": "ALSA-2026:92157",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-92157",
      "released": "2026-11-07T00:40:18Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "almalinux 9",
      "fixedVersion": "0.6.1-17.el9_8.2",
      "fix": "ALSA-2026:92145",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-92145",
      "released": "2026-11-07T00:41:11Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "amzn 2023",
      "fixedVersion": "0.6.2.2-7.amzn2023",
      "fix": "ALAS2023-2026-3130",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3130",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "ol 10",
      "fixedVersion": "0:0.6.2.2-7.el10_2.2",
      "fix": "ELSA-2026-80605",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-80605",
      "released": "2026-11-07T00:59:15Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "ol 8",
      "fixedVersion": "0:0.6.1-6.module\u002Bel8.10.0\u002B91088\u002B2d069dc4",
      "fix": "ELSA-2026-92157",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-92157",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "ol 9",
      "fixedVersion": "0:0.6.1-17.el9_8.2",
      "fix": "ELSA-2026-92145",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-92145",
      "released": "2026-11-07T00:52:27Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "0.6.2.3-160000.3.1",
      "fix": "OPENSUSE-SU-2026:21944-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21944-1",
      "released": "2026-09-23T19:43:03Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "rocky 10",
      "fixedVersion": "0:0.6.2.2-7.el10_2.2",
      "fix": "RLSA-2026:80605",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-80605",
      "released": "2026-11-07T00:39:51Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "rocky 9",
      "fixedVersion": "0:0.6.1-17.el9_8.2",
      "fix": "RLSA-2026:92145",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-92145",
      "released": "2026-11-07T00:39:57Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "sles 15.6",
      "fixedVersion": "0.6.1-150600.18.3.1",
      "fix": "SUSE-SU-2026:4251-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4251-1",
      "released": "2026-09-17T16:01:20Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "sles 15.7",
      "fixedVersion": "0.6.1-150600.18.3.1",
      "fix": "SUSE-SU-2026:4251-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4251-1",
      "released": "2026-09-17T16:01:20Z"
    },
    {
      "platform": "linux",
      "product": "cjose",
      "release": "sles 16.0",
      "fixedVersion": "0.6.2.3-160000.3.1",
      "fix": "SUSE-SU-2026:23910-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23910-1",
      "released": "2026-09-23T19:43:44Z"
    },
    {
      "platform": "linux",
      "product": "cjose-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "0.6.2.2-7.amzn2023",
      "fix": "ALAS2023-2026-3130",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3130",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "cjose-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "0.6.2.2-7.amzn2023",
      "fix": "ALAS2023-2026-3130",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3130",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "cjose-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:0.6.1-6.module\u002Bel8.10.0\u002B25174\u002B9c399f63",
      "fix": "RHSA-2026:92157",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-92157",
      "released": "2026-10-30T22:08:02Z"
    },
    {
      "platform": "linux",
      "product": "cjose-devel",
      "release": "RHEL 9",
      "fixedVersion": "0:0.6.1-17.el9_8.2",
      "fix": "RHSA-2026:92145",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-92145",
      "released": "2026-10-30T22:09:46Z"
    },
    {
      "platform": "linux",
      "product": "cjose-devel",
      "release": "almalinux 10",
      "fixedVersion": "0.6.2.2-7.el10_2.2",
      "fix": "ALSA-2026:80605",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-80605",
      "released": "2026-11-07T00:39:57Z"
    },
    {
      "platform": "linux",
      "product": "cjose-devel",
      "release": "almalinux 8",
      "fixedVersion": "0.6.1-6.module_el8.10.0\u002B4330\u002B15616d81",
      "fix": "ALSA-2026:92157",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-92157",
      "released": "2026-11-07T00:40:18Z"
    },
    {
      "platform": "linux",
      "product": "cjose-devel",
      "release": "almalinux 9",
      "fixedVersion": "0.6.1-17.el9_8.2",
      "fix": "ALSA-2026:92145",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-92145",
      "released": "2026-11-07T00:41:11Z"
    },
    {
      "platform": "linux",
      "product": "cjose-devel",
      "release": "amzn 2023",
      "fixedVersion": "0.6.2.2-7.amzn2023",
      "fix": "ALAS2023-2026-3130",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3130",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "cjose-devel",
      "release": "ol 10",
      "fixedVersion": "0:0.6.2.2-7.el10_2.2",
      "fix": "ELSA-2026-80605",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-80605",
      "released": "2026-11-07T00:59:15Z"
    },
    {
      "platform": "linux",
      "product": "cjose-devel",
      "release": "ol 8",
      "fixedVersion": "0:0.6.1-6.module\u002Bel8.10.0\u002B91088\u002B2d069dc4",
      "fix": "ELSA-2026-92157",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-92157",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "cjose-devel",
      "release": "ol 9",
      "fixedVersion": "0:0.6.1-17.el9_8.2",
      "fix": "ELSA-2026-92145",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-92145",
      "released": "2026-11-07T00:52:27Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "RHEL 8",
      "fixedVersion": "0:2.4.9.4-9.module\u002Bel8.10.0\u002B24880\u002B4db9166e",
      "fix": "RHSA-2026:92157",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-92157",
      "released": "2026-10-30T22:08:02Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "almalinux 8",
      "fixedVersion": "2.4.9.4-9.module_el8.10.0\u002B4297\u002B63ae3533",
      "fix": "ALSA-2026:92157",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-92157",
      "released": "2026-11-07T00:40:18Z"
    },
    {
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      "product": "mod_auth_openidc",
      "release": "ol 8",
      "fixedVersion": "0:2.4.9.4-9.module\u002Bel8.10.0\u002B91088\u002B2d069dc4",
      "fix": "ELSA-2026-92157",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-92157",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "mod_auth_openidc",
      "release": "rocky 8",
      "fixedVersion": "0:2.4.9.4-9.module\u002Bel8.10.0\u002B40373\u002B8a3f15d2",
      "fix": "RLSA-2026:92157",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-92157",
      "released": "2026-11-07T00:39:57Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}