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    2 vulnerabilities found for crypton-certificate by Haskell Programming Language

    CVE-2026-9648 (GCVE-0-2026-9648)

    Vulnerability from nvd – Published: 2026-06-11 14:30 – Updated: 2026-06-11 15:39
    VLAI
    Title
    CVE-2026-9648
    Summary
    The crypton-x509-validation Haskell library fails to enforce X.509 NameConstraints, allowing TLS clients to accept certificates whose Subject Alternative Names fall outside the issuing CA’s permitted subtrees. This oversight enables an attacker who compromises a name-constrained sub-CA to impersonate domains beyond its intended scope.
    Severity
    9.1 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-295 - Improper Certificate Validation
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

    {
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        "references": [
          {
            "url": "https://www.kb.cert.org/vuls/id/862559"
          }
        ],
        "title": "CVE Program Container"
      },
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        "metrics": [
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              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 9.1,
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                ],
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
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        {
          "product": "crypton-certificate",
          "vendor": "Haskell Programming Language",
          "versions": [
            {
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      ],
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        "shortName": "certcc"
      },
      "references": [
        {
          "url": "https://github.com/kazu-yamamoto/crypton-certificate/pull/30"
        },
        {
          "url": "https://github.com/kazu-yamamoto/crypton-certificate/pull/30/changes/f4b77edf6ead77f4a886da40e41eab20f0180e39"
        },
        {
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        {
          "url": "https://github.com/haskell/security-advisories/pull/332"
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    CVE-2026-9648 (GCVE-0-2026-9648)

    Vulnerability from cvelistv5 – Published: 2026-06-11 14:30 – Updated: 2026-06-11 15:39
    VLAI
    Title
    CVE-2026-9648
    Summary
    The crypton-x509-validation Haskell library fails to enforce X.509 NameConstraints, allowing TLS clients to accept certificates whose Subject Alternative Names fall outside the issuing CA’s permitted subtrees. This oversight enables an attacker who compromises a name-constrained sub-CA to impersonate domains beyond its intended scope.
    Severity
    9.1 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-295 - Improper Certificate Validation
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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          {
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          }
        ],
        "title": "CVE Program Container"
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        "metrics": [
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            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "baseScore": 9.1,
              "baseSeverity": "CRITICAL",
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