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            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "LOW",
              "baseScore": 8.6,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "LOW",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L",
              "version": "3.1"
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              "content": {
                "id": "CVE-2025-40920",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
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                "timestamp": "2025-08-11T20:52:17.823708Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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          "dateUpdated": "2025-11-04T21:10:19.369Z",
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          {
            "url": "http://www.openwall.com/lists/oss-security/2025/08/12/1"
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        "title": "CVE Program Container"
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      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Catalyst-Authentication-Credential-HTTP",
          "product": "Catalyst::Authentication::Credential::HTTP",
          "repo": "https://github.com/perl-catalyst/Catalyst-Authentication-Credential-HTTP",
          "vendor": "ETHER",
          "versions": [
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              "lessThanOrEqual": "1.018",
              "status": "affected",
              "version": "0.06",
              "versionType": "custom"
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              "value": "\u003cdiv\u003eCatalyst::Authentication::Credential::HTTP versions 1.018 and earlier for Perl generate nonces using the Perl Data::UUID library.\u003cul\u003e\u003cli\u003eData::UUID does not use a strong cryptographic source for generating UUIDs.\u003c/li\u003e\u003cli\u003eData::UUID returns v3 UUIDs, which are generated from known information and are unsuitable for security, as per RFC 9562.\u003c/li\u003e\u003cli\u003eThe nonces should be generated from a strong cryptographic source, as per RFC 7616.\u003c/li\u003e\u003c/ul\u003e\u003c/div\u003e"
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      ],
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        {
          "descriptions": [
            {
              "cweId": "CWE-340",
              "description": "CWE-340 Generation of Predictable Numbers or Identifiers",
              "lang": "en",
              "type": "CWE"
            },
            {
              "cweId": "CWE-338",
              "description": "CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator",
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              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2025-08-28T11:49:41.169Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
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          "tags": [
            "patch"
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          "url": "https://security.metacpan.org/patches/C/Catalyst-Authentication-Credential-HTTP/1.018/CVE-2025-40920-r1.patch"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/perl-catalyst/Catalyst-Authentication-Credential-HTTP/pull/1"
        },
        {
          "url": "https://metacpan.org/release/ETHER/Catalyst-Authentication-Credential-HTTP-1.018/source/lib/Catalyst/Authentication/Credential/HTTP.pm#L391"
        },
        {
          "url": "https://datatracker.ietf.org/doc/html/rfc9562#name-security-considerations"
        },
        {
          "url": "https://datatracker.ietf.org/doc/html/rfc7616#section-5.12"
        }
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              "value": "\u003cdiv\u003eUsers are advised to upgrade to Catalyst-Authentication-Credential-HTTP version 1.019 or later.\u003c/div\u003e"
            }
          ],
          "value": "Users are advised to upgrade to Catalyst-Authentication-Credential-HTTP version 1.019 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Catalyst::Authentication::Credential::HTTP versions 1.018 and earlier for Perl use insecurely generated nonces",
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    "assignerShortName": "CPANSec",
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    "datePublished": "2025-08-11T20:19:57.516Z",
    "dateReserved": "2025-04-16T09:05:34.362Z",
    "dateUpdated": "2025-11-04T21:10:19.369Z",
    "state": "PUBLISHED"
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