{"api_version":"1","generated_at":"2026-07-18T04:24:50+00:00","cve":"CVE-2026-13401","urls":{"html":"https://cve.report/CVE-2026-13401","api":"https://cve.report/api/cve/CVE-2026-13401.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-13401","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-13401"},"summary":{"title":"XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes","description":"XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes.\n\nThe parserc_parse function never advances the attribute-parse state cursor on certain malformed attribute forms, looping forever.\n\nNameless attributes such as \"<a ='c'>\" or unbalanced quotes \"<a b='''''''c'>\" can trigger this condition.","state":"PUBLISHED","assigner":"CPANSec","published_at":"2026-07-16 17:16:55","updated_at":"2026-07-17 13:17:55"},"problem_types":["CWE-835","CWE-835 CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')"],"metrics":[{"version":"3.1","source":"ADP","type":"DECLARED","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}},{"version":"3.1","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://github.com/nanoscopic/perl-XML-Bare/pull/2","name":"https://github.com/nanoscopic/perl-XML-Bare/pull/2","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"http://www.openwall.com/lists/oss-security/2026/07/16/2","name":"http://www.openwall.com/lists/oss-security/2026/07/16/2","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://security.metacpan.org/patches/X/XML-Bare/0.53/CVE-2026-13401-r1.patch","name":"https://security.metacpan.org/patches/X/XML-Bare/0.53/CVE-2026-13401-r1.patch","refsource":"9b29abf9-4ab0-4765-b253-1875cd9b441e","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-13401","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-13401","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"CODECHILD","product":"XML::Bare","version":"affected 0.53 custom","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[{"source":"CNA","title":"","value":"Apply the patch.","time":"","lang":"en"}],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"13401","cve":"CVE-2026-13401","epss":"0.001860000","percentile":"0.083790000","score_date":"2026-07-17","updated_at":"2026-07-18 00:07:21"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2026-07-16T19:27:57.805Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"url":"http://www.openwall.com/lists/oss-security/2026/07/16/2"}],"title":"CVE Program Container"},{"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}},{"other":{"content":{"id":"CVE-2026-13401","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-07-17T12:51:48.086715Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-07-17T12:51:52.550Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"collectionURL":"https://cpan.org/modules","defaultStatus":"unaffected","packageName":"XML-Bare","product":"XML::Bare","programFiles":["parser.c"],"programRoutines":[{"name":"parserc_parse"}],"repo":"https://github.com/nanoscopic/perl-XML-Bare","vendor":"CODECHILD","versions":[{"lessThanOrEqual":"0.53","status":"affected","version":"0","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes.\n\nThe parserc_parse function never advances the attribute-parse state cursor on certain malformed attribute forms, looping forever.\n\nNameless attributes such as \"<a ='c'>\" or unbalanced quotes \"<a b='''''''c'>\" can trigger this condition."}],"problemTypes":[{"descriptions":[{"cweId":"CWE-835","description":"CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-07-16T16:14:50.176Z","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","shortName":"CPANSec"},"references":[{"tags":["issue-tracking"],"url":"https://github.com/nanoscopic/perl-XML-Bare/pull/2"},{"tags":["patch"],"url":"https://security.metacpan.org/patches/X/XML-Bare/0.53/CVE-2026-13401-r1.patch"}],"source":{"discovery":"UNKNOWN"},"title":"XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes","workarounds":[{"lang":"en","value":"Apply the patch."}],"x_generator":{"engine":"cpansec-cna-tool 0.1"}}},"cveMetadata":{"assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","assignerShortName":"CPANSec","cveId":"CVE-2026-13401","datePublished":"2026-07-16T16:14:50.176Z","dateReserved":"2026-06-26T08:38:33.750Z","dateUpdated":"2026-07-17T12:51:52.550Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-16 17:16:55","lastModifiedDate":"2026-07-17 13:17:55","problem_types":["CWE-835","CWE-835 CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')"],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-17T12:51:48.086715Z","id":"CVE-2026-13401","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"13401","Ordinal":"1","Title":"XML::Bare versions through 0.53 for Perl will hang in an infinit","CVE":"CVE-2026-13401","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"13401","Ordinal":"1","NoteData":"XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes.\n\nThe parserc_parse function never advances the attribute-parse state cursor on certain malformed attribute forms, looping forever.\n\nNameless attributes such as \"<a ='c'>\" or unbalanced quotes \"<a b='''''''c'>\" can trigger this condition.","Type":"Description","Title":"XML::Bare versions through 0.53 for Perl will hang in an infinit"}]}}}