{
  "cveId": "CVE-2026-5588",
  "url": "https://patchblox.com/security/cve/CVE-2026-5588",
  "summary": "CVE-2026-5588 is fixed in 7 products on 1 platform, first by DEBIAN-CVE-2026-5588, released April 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "bouncycastle: Use of a Broken or Risky Cryptographic Algorithm vulnerability in Legion of the Bouncy Castle Inc",
  "description": "Use of a Broken or Risky Cryptographic Algorithm vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA bcpkix on all (pkix modules), Legion of the Bouncy Castle Inc. BCPKIX-FIPS bcpkix on All (pkix modules), Legion of the Bouncy Castle Inc. BCPIX-LTS bcpkix on All (pkix modules).   This vulnerability is associated with program files JcaContentVerifierProviderBuilder.Java, JcaContentVerfierProviderBuilder.Java.    This issue affects BC-JAVA: from 1.67 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84; BCPKIX-FIPS: from 2.0.6 before 2.0.11, from 2.1.7 before 2.1.11; BCPIX-LTS: from 2.73.7 before 2.73.11.",
  "published": "2026-04-15T10:16:49Z",
  "severity": "moderate",
  "epss": 0.00777,
  "epssPercentile": 0.56049,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bouncycastle",
      "release": "Debian 14",
      "fixedVersion": "1.86-1",
      "fix": "DEBIAN-CVE-2026-5588",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-5588",
      "released": "2026-04-15T10:16:49Z"
    },
    {
      "platform": "linux",
      "product": "bouncycastle",
      "release": "amzn 2023",
      "fixedVersion": "1.70-4.amzn2023.0.7",
      "fix": "ALAS2023-2026-1775",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1775",
      "released": "2026-06-08T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bouncycastle-javadoc",
      "release": "amzn 2023",
      "fixedVersion": "1.70-4.amzn2023.0.7",
      "fix": "ALAS2023-2026-1775",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1775",
      "released": "2026-06-08T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bouncycastle-mail",
      "release": "amzn 2023",
      "fixedVersion": "1.70-4.amzn2023.0.7",
      "fix": "ALAS2023-2026-1775",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1775",
      "released": "2026-06-08T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bouncycastle-pg",
      "release": "amzn 2023",
      "fixedVersion": "1.70-4.amzn2023.0.7",
      "fix": "ALAS2023-2026-1775",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1775",
      "released": "2026-06-08T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bouncycastle-pkix",
      "release": "amzn 2023",
      "fixedVersion": "1.70-4.amzn2023.0.7",
      "fix": "ALAS2023-2026-1775",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1775",
      "released": "2026-06-08T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bouncycastle-tls",
      "release": "amzn 2023",
      "fixedVersion": "1.70-4.amzn2023.0.7",
      "fix": "ALAS2023-2026-1775",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1775",
      "released": "2026-06-08T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bouncycastle-util",
      "release": "amzn 2023",
      "fixedVersion": "1.70-4.amzn2023.0.7",
      "fix": "ALAS2023-2026-1775",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1775",
      "released": "2026-06-08T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}