{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "XML-Sig",
          "product": "XML::Sig",
          "programFiles": [
            "lib/XML/Sig.pm"
          ],
          "programRoutines": [
            {
              "name": "verify()"
            }
          ],
          "repo": "https://github.com/perl-net-saml2/perl-XML-Sig",
          "vendor": "TIMLEGGE",
          "versions": [
            {
              "lessThan": "0.68",
              "status": "affected",
              "version": "0.27",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "gttds"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
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              "base64": false,
              "type": "text/html",
              "value": "XML-Sig versions 0.27 through 0.67 for Perl incorrectly validates XML files if signatures are omitted.\u003cbr\u003e\u003cbr\u003eAn attacker can remove the signature from the XML document to make it pass the verification check.\u003cbr\u003e\u003cbr\u003eXML-Sig is a Perl module to validate signatures on XML files.\u0026nbsp; An unsigned XML file should return an error message.\u0026nbsp; The affected versions return true when attempting to validate an XML file that contains no signatures.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e"
            }
          ],
          "value": "XML-Sig versions 0.27 through 0.67 for Perl incorrectly validates XML files if signatures are omitted.\n\nAn attacker can remove the signature from the XML document to make it pass the verification check.\n\nXML-Sig is a Perl module to validate signatures on XML files.\u00a0 An unsigned XML file should return an error message.\u00a0 The affected versions return true when attempting to validate an XML file that contains no signatures."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-115",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-115 Authentication Bypass"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-347",
              "description": "CWE-347 Improper Verification of Cryptographic Signature",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-11-26T22:34:33.569Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/perl-net-saml2/perl-XML-Sig/issues/63"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/perl-net-saml2/perl-XML-Sig/pull/64"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Upgrade to version 0.68"
            }
          ],
          "value": "Upgrade to version 0.68"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "XML-Sig prior to 0.68 for Perl improperly validates XML without signatures",
      "x_generator": {
        "engine": "Vulnogram 0.5.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2025-40934",
    "datePublished": "2025-11-26T22:34:33.569Z",
    "dateReserved": "2025-04-16T09:05:34.363Z",
    "dateUpdated": "2025-11-26T22:34:33.569Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-40934\",\"sourceIdentifier\":\"9b29abf9-4ab0-4765-b253-1875cd9b441e\",\"published\":\"2025-11-26T23:15:47.773\",\"lastModified\":\"2025-11-26T23:15:47.773\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"XML-Sig versions 0.27 through 0.67 for Perl incorrectly validates XML files if signatures are omitted.\\n\\nAn attacker can remove the signature from the XML document to make it pass the verification check.\\n\\nXML-Sig is a Perl module to validate signatures on XML files.\u00a0 An unsigned XML file should return an error message.\u00a0 The affected versions return true when attempting to validate an XML file that contains no signatures.\"}],\"metrics\":{},\"weaknesses\":[{\"source\":\"9b29abf9-4ab0-4765-b253-1875cd9b441e\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-347\"}]}],\"references\":[{\"url\":\"https://github.com/perl-net-saml2/perl-XML-Sig/issues/63\",\"source\":\"9b29abf9-4ab0-4765-b253-1875cd9b441e\"},{\"url\":\"https://github.com/perl-net-saml2/perl-XML-Sig/pull/64\",\"source\":\"9b29abf9-4ab0-4765-b253-1875cd9b441e\"}]}}"
  }
}