{
  "cveId": "CVE-2026-42784",
  "url": "https://patchblox.com/security/cve/CVE-2026-42784",
  "summary": "CVE-2026-42784 is fixed in 8 products on 1 platform, first by DEBIAN-CVE-2026-42784, released May 27, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "Sequoia-openpgp: sequoia-openpgp: cryptographic integrity compromise via key flag confusion",
  "description": "A flaw was found in sequoia-openpgp. The library incorrectly infers key flags for older certificates when a key flags subpacket is missing, leading to a discrepancy in how key capabilities are viewed. This key flag confusion allows an attacker to bypass the back-signature check. Consequently, an attacker can illegitimately bind an arbitrary subkey to their own certificate and forge signatures, completely compromising cryptographic integrity.",
  "published": "2026-09-16T00:00:00Z",
  "severity": "Important",
  "cvss": 7.4,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N",
  "cwe": "Improper Verification of Cryptographic Signature",
  "epss": 0.00313,
  "epssPercentile": 0.24395,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42784",
  "fixes": [
    {
      "platform": "linux",
      "product": "rpm-sequoia",
      "release": "RHEL 9",
      "fixedVersion": "0:1.10.2.1-1.el9_8",
      "fix": "RHSA-2026:76733",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-76733",
      "released": "2026-10-06T21:58:25Z"
    },
    {
      "platform": "linux",
      "product": "rpm-sequoia",
      "release": "almalinux 10",
      "fixedVersion": "1.10.2.1-1.el10_2",
      "fix": "ALSA-2026:76734",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-76734",
      "released": "2026-10-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "rpm-sequoia",
      "release": "almalinux 9",
      "fixedVersion": "1.10.2.1-1.el9_8",
      "fix": "ALSA-2026:76733",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-76733",
      "released": "2026-10-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "rpm-sequoia",
      "release": "ol 10",
      "fixedVersion": "0:1.10.2.1-1.el10_2",
      "fix": "ELSA-2026-76734",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-76734",
      "released": "2026-10-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "rpm-sequoia",
      "release": "ol 9",
      "fixedVersion": "0:1.10.2.1-1.el9_8",
      "fix": "ELSA-2026-76733",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-76733",
      "released": "2026-10-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "rpm-sequoia-devel",
      "release": "RHEL 9",
      "fixedVersion": "0:1.10.2.1-1.el9_8",
      "fix": "RHSA-2026:76733",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-76733",
      "released": "2026-10-06T21:58:25Z"
    },
    {
      "platform": "linux",
      "product": "rpm-sequoia-devel",
      "release": "almalinux 10",
      "fixedVersion": "1.10.2.1-1.el10_2",
      "fix": "ALSA-2026:76734",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-76734",
      "released": "2026-10-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "rpm-sequoia-devel",
      "release": "almalinux 9",
      "fixedVersion": "1.10.2.1-1.el9_8",
      "fix": "ALSA-2026:76733",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-76733",
      "released": "2026-10-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "rpm-sequoia-devel",
      "release": "ol 10",
      "fixedVersion": "0:1.10.2.1-1.el10_2",
      "fix": "ELSA-2026-76734",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-76734",
      "released": "2026-10-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "rpm-sequoia-devel",
      "release": "ol 9",
      "fixedVersion": "0:1.10.2.1-1.el9_8",
      "fix": "ELSA-2026-76733",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-76733",
      "released": "2026-10-07T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "rust-rpm-sequoia",
      "release": "RHEL 10",
      "fixedVersion": "1.10.2.1-1.el10_2",
      "fix": "RHSA-2026:76734",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-76734",
      "released": "2026-10-07T22:12:38Z"
    },
    {
      "platform": "linux",
      "product": "rust-rpm-sequoia",
      "release": "rocky 10",
      "fixedVersion": "0:1.10.2.1-1.el10_2",
      "fix": "RLSA-2026:76734",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-76734",
      "released": "2026-10-07T12:11:09Z"
    },
    {
      "platform": "linux",
      "product": "rust-rpm-sequoia",
      "release": "rocky 9",
      "fixedVersion": "0:1.10.2.1-1.el9_8",
      "fix": "RLSA-2026:76733",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-76733",
      "released": "2026-10-07T06:05:54Z"
    },
    {
      "platform": "linux",
      "product": "rust-sequoia-openpgp",
      "release": "Debian 14",
      "fixedVersion": "2.2.0-2",
      "fix": "DEBIAN-CVE-2026-42784",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-42784",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "rust-sequoia-sq",
      "release": "RHEL 10",
      "fixedVersion": "1.4.0.1-2.el10_2",
      "fix": "RHSA-2026:76737",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-76737",
      "released": "2026-10-08T22:23:44Z"
    },
    {
      "platform": "linux",
      "product": "rust-sequoia-sq",
      "release": "rocky 10",
      "fixedVersion": "0:1.4.0.1-2.el10_2",
      "fix": "RLSA-2026:76737",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-76737",
      "released": "2026-10-07T18:10:06Z"
    },
    {
      "platform": "linux",
      "product": "rust-sequoia-sqv",
      "release": "RHEL 10",
      "fixedVersion": "1.3.0.2-1.el10_2",
      "fix": "RHSA-2026:76735",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-76735",
      "released": "2026-10-07T22:12:38Z"
    },
    {
      "platform": "linux",
      "product": "rust-sequoia-sqv",
      "release": "rocky 10",
      "fixedVersion": "0:1.3.0.2-1.el10_2",
      "fix": "RLSA-2026:76735",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-76735",
      "released": "2026-10-07T12:10:19Z"
    },
    {
      "platform": "linux",
      "product": "sequoia-sq",
      "release": "almalinux 10",
      "fixedVersion": "1.4.0.1-2.el10_2",
      "fix": "ALSA-2026:76737",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-76737",
      "released": "2026-10-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "sequoia-sq",
      "release": "ol 10",
      "fixedVersion": "0:1.4.0.1-2.0.1.el10_2",
      "fix": "ELSA-2026-76737",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-76737",
      "released": "2026-10-08T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "sequoia-sqv",
      "release": "almalinux 10",
      "fixedVersion": "1.3.0.2-1.el10_2",
      "fix": "ALSA-2026:76735",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-76735",
      "released": "2026-10-06T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "sequoia-sqv",
      "release": "ol 10",
      "fixedVersion": "0:1.3.0.2-1.el10_2",
      "fix": "ELSA-2026-76735",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-76735",
      "released": "2026-10-06T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}