CVE-2025-40934

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{"affected": [{"affectedData": [{"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"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:xml\\:\\:sig_project:xml\\:\\:sig:*:*:*:*:*:perl:*:*", "matchCriteriaId": "8F401AE6-72AA-4188-B763-4354213AA0BB", "versionEndIncluding": "0.67", "versionStartIncluding": "0.27", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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."}, {"lang": "es", "value": "Las versiones 0.27 a 0.67 de XML-Sig para Perl validan incorrectamente los archivos XML si se omiten las firmas.\n\nUn atacante puede eliminar la firma del documento XML para que pase la verificaci\u00f3n.\n\nXML-Sig es un m\u00f3dulo de Perl para validar firmas en archivos XML. Un archivo XML sin firmar deber\u00eda devolver un mensaje de error. Las versiones afectadas devuelven verdadero al intentar validar un archivo XML que no contiene firmas."}], "id": "CVE-2025-40934", "lastModified": "2026-10-18T20:10:00.110", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.3, "baseSeverity": "CRITICAL", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.7, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-40934", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-11-28T18:50:44.544431Z", "version": "2.0.3"}}]}, "published": "2025-11-26T23:15:47.773", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/perl-net-saml2/perl-XML-Sig/issues/63"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "tags": ["Issue Tracking"], "url": "https://github.com/perl-net-saml2/perl-XML-Sig/pull/64"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-347"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}

{"created": "2025-11-27T16:26:44.047078+00:00", "updated": "2025-11-27T16:26:44.047113+00:00", "vendors": ["perl", "perl$PRODUCT$xml::sig"]}