{
  "fix": "ALAS2023-2026-2153",
  "url": "https://patchblox.com/security/fix/linux/alas2023-2026-2153",
  "summary": "ALAS2023-2026-2153, released September 14, 2026, fixes 16 CVEs across 7 products. None of them is reported as exploited. Patch Radar priority: Urgent.",
  "platform": "linux",
  "type": "advisory",
  "title": "Security update for 7 packages",
  "released": "2026-09-14T09:00:00Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2026-8763, rated Critical",
  "supported": true,
  "cveCount": 16,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.00616,
  "maxCvss": 9.1,
  "vendorAdvisory": "https://alas.aws.amazon.com/AL2023/ALAS-2026-2153.html",
  "appliesTo": [
    {
      "product": "bouncycastle",
      "productUrl": "https://patchblox.com/security/product/linux/bouncycastle",
      "release": "amzn 2023",
      "fixedVersion": "1.70-4.amzn2023.0.8",
      "supported": true
    },
    {
      "product": "bouncycastle-javadoc",
      "productUrl": "https://patchblox.com/security/product/linux/bouncycastle-javadoc",
      "release": "amzn 2023",
      "fixedVersion": "1.70-4.amzn2023.0.8",
      "supported": true
    },
    {
      "product": "bouncycastle-mail",
      "productUrl": "https://patchblox.com/security/product/linux/bouncycastle-mail",
      "release": "amzn 2023",
      "fixedVersion": "1.70-4.amzn2023.0.8",
      "supported": true
    },
    {
      "product": "bouncycastle-pg",
      "productUrl": "https://patchblox.com/security/product/linux/bouncycastle-pg",
      "release": "amzn 2023",
      "fixedVersion": "1.70-4.amzn2023.0.8",
      "supported": true
    },
    {
      "product": "bouncycastle-pkix",
      "productUrl": "https://patchblox.com/security/product/linux/bouncycastle-pkix",
      "release": "amzn 2023",
      "fixedVersion": "1.70-4.amzn2023.0.8",
      "supported": true
    },
    {
      "product": "bouncycastle-tls",
      "productUrl": "https://patchblox.com/security/product/linux/bouncycastle-tls",
      "release": "amzn 2023",
      "fixedVersion": "1.70-4.amzn2023.0.8",
      "supported": true
    },
    {
      "product": "bouncycastle-util",
      "productUrl": "https://patchblox.com/security/product/linux/bouncycastle-util",
      "release": "amzn 2023",
      "fixedVersion": "1.70-4.amzn2023.0.8",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2026-8763",
      "url": "https://patchblox.com/security/cve/CVE-2026-8763",
      "title": "bouncycastle: Name Constraints bypass via trailing dot in rfc822Name and URI (bsc#1272700).",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.1,
      "epss": 0.0043,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-58062",
      "url": "https://patchblox.com/security/cve/CVE-2026-58062",
      "title": "bouncycastle: Stapled OCSP response accepted without binding to the checked certificate (bsc#1272716).",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.1,
      "epss": 0.00364,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59650",
      "url": "https://patchblox.com/security/cve/CVE-2026-59650",
      "title": "bouncycastle: MTI/A0 DH agreement exponentiates unvalidated peer value (bsc#1272730).",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.1,
      "epss": 0.00337,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-58060",
      "url": "https://patchblox.com/security/cve/CVE-2026-58060",
      "title": "bouncycastle: HSS public-key level count unbounded, enabling huge allocation on verify (bsc#1272714).",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00616,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-13506",
      "url": "https://patchblox.com/security/cve/CVE-2026-13506",
      "title": "bouncycastle: Lazy ASN.1 sequence forcing resets nesting-depth guard (bsc#1272709).",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00493,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-14682",
      "url": "https://patchblox.com/security/cve/CVE-2026-14682",
      "title": "bouncycastle: Possible OOM from unbounded up-front allocation on a definite-length read (bsc#1272711).",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00493,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-58059",
      "url": "https://patchblox.com/security/cve/CVE-2026-58059",
      "title": "bouncycastle: Quadratic-time escaping when stringifying X.500 distinguished names (bsc#1272713).",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00493,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59649",
      "url": "https://patchblox.com/security/cve/CVE-2026-59649",
      "title": "bouncycastle: OpenPGP user-attribute subpacket length bounded only by JVM max memory (bsc#1272729).",
      "priority": "High",
      "severity": "important",
      "cvss": 7.5,
      "epss": 0.00493,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59646",
      "url": "https://patchblox.com/security/cve/CVE-2026-59646",
      "title": "bouncycastle: DTLS handshake reassembler allocates buffer from unchecked 24-bit length (bsc#1272726).",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00465,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59645",
      "url": "https://patchblox.com/security/cve/CVE-2026-59645",
      "title": "bouncycastle: OER parser recurses without depth limit on self-referential IEEE 1609.2 schema (bsc#1272725).",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00408,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59642",
      "url": "https://patchblox.com/security/cve/CVE-2026-59642",
      "title": "bouncycastle: CMS AuthenticatedData content not bound to MAC when authAttrs present (bsc#1272722).",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00303,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-58061",
      "url": "https://patchblox.com/security/cve/CVE-2026-58061",
      "title": "bouncycastle: CCM-family modes write plaintext to caller buffer before tag check (bsc#1272715).",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00282,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59639",
      "url": "https://patchblox.com/security/cve/CVE-2026-59639",
      "title": "bouncycastle: CMS verifySignatures returns true for SignedData with zero signers (bsc#1272719).",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00242,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-12803",
      "url": "https://patchblox.com/security/cve/CVE-2026-12803",
      "title": "bouncycastle: KCCMBlockCipher MAC does not bind nonce when AAD is absent (bsc#1272703).",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.00236,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59638",
      "url": "https://patchblox.com/security/cve/CVE-2026-59638",
      "title": "bouncycastle: JSSE hostname verifier CN-fallback enabled by default despite documented opt-in (bsc#1272718).",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 6.5,
      "epss": 0.00345,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-59641",
      "url": "https://patchblox.com/security/cve/CVE-2026-59641",
      "title": "bouncycastle: S/MIME validator trusts signer-asserted signingTime for path validation (bsc#1272721).",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 5.3,
      "epss": 0.00179,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-11T01:43:54Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}