{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-12993", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-06-23T12:18:15.412Z", "datePublished": "2026-06-25T23:23:20.902Z", "dateUpdated": "2026-06-25T23:23:20.902Z"}, "containers": {"cna": {"title": "Apicurio/apicurio-registry: apicurio-registry: xml entity-expansion denial of service via internal dtd subset", "metrics": [{"other": {"content": {"value": "Moderate", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "A flaw was found in Apicurio Registry. The DocumentBuilderAccessor correctly blocks external DTD and schema access but does not disable DOCTYPE declarations or enable FEATURE_SECURE_PROCESSING. An attacker with artifact-write permission can upload XML documents with internal entity-expansion payloads (billion-laughs variant) that cause CPU and heap exhaustion, partially mitigated by the JAXP default 64,000 entity-expansion limit."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat build of Apicurio Registry 3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "apicurio/apicurio-registry-rhel8", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:apicurio_registry:3"]}, {"vendor": "Red Hat", "product": "Red Hat build of Apicurio Registry 3", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "apicurio/apicurio-registry-rhel9", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:apicurio_registry:3"]}], "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-12993", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2491692", "name": "RHBZ#2491692", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-06-10T13:00:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-776", "description": "Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')", "timeline": [{"lang": "en", "time": "2026-05-24T00:00:00.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-06-10T13:00:00.000Z", "value": "Made public."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-06-25T23:23:20.902Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

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{"bugzilla": {"description": "Apicurio/apicurio-registry: apicurio-registry: XML entity-expansion denial of service via internal DTD subset", "id": "2491692", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2491692"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-776", "details": ["A flaw was found in Apicurio Registry. The DocumentBuilderAccessor correctly blocks external DTD and schema access but does not disable DOCTYPE declarations or enable FEATURE_SECURE_PROCESSING. An attacker with artifact-write permission can upload XML documents with internal entity-expansion payloads (billion-laughs variant) that cause CPU and heap exhaustion, partially mitigated by the JAXP default 64,000 entity-expansion limit."], "name": "CVE-2026-12993", "package_state": [{"cpe": "cpe:/a:redhat:apicurio_registry:3", "fix_state": "Affected", "package_name": "apicurio/apicurio-registry-rhel8", "product_name": "Red Hat build of Apicurio Registry 3"}, {"cpe": "cpe:/a:redhat:apicurio_registry:3", "fix_state": "Affected", "package_name": "apicurio/apicurio-registry-rhel9", "product_name": "Red Hat build of Apicurio Registry 3"}], "public_date": "2026-06-10T13:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-12993\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-12993"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Red Hat build of Apicurio Registry 3", "source": "cna", "vendor": "Red Hat"}, "product": "apicurio_registry", "vendor": "redhat"}], "created": "2026-06-26T01:00:06.090544+00:00", "updated": "2026-06-26T09:36:05.844133+00:00", "vendors": ["redhat", "redhat$PRODUCT$apicurio_registry"]}