{"affected":[{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"apicurio/apicurio-registry-rhel8","product":"Red Hat build of Apicurio Registry 3.3.1","source":"CNA: redhat","vendor":"Red Hat","versions":[]},{"defaultStatus":"unaffected","ecosystem":"https://access.redhat.com/downloads/content/package-browser/","packageName":"apicurio/apicurio-registry-rhel9","product":"Red Hat build of Apicurio Registry 3.3.1","source":"CNA: redhat","vendor":"Red Hat","versions":[]}],"cveId":"CVE-2026-12993","cwes":["CWE-776"],"description":"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.","epss":{"date":"2026-11-05","percentile":0.44269,"score":0.00519},"exploits":[],"kev":null,"metrics":[{"score":6.5,"severity":"medium","source":"CNA: redhat","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1793938107577,"publishedAt":1782429800902,"references":[{"source":"CNA: redhat","tags":["vendor-advisory","x_refsource_REDHAT"],"url":"https://access.redhat.com/errata/RHSA-2026:59360"},{"source":"CNA: redhat","tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-12993"},{"source":"CNA: redhat","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2491692"}],"remediation":[],"revision":"c4d7528198b303543dddcf6c9885848dfed53aa3f4931b4e8217a6cc3ed08cc0","sources":[{"modifiedAt":1793938107577,"name":"CNA: redhat","retrievedAt":1793941721408,"url":"https://www.cve.org/CVERecord?id=CVE-2026-12993"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793941726857,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-12993"}],"ssvc":{"assessedAt":1782756723315,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Apicurio/apicurio-registry: apicurio-registry: xml entity-expansion denial of service via internal dtd subset","updatedAt":1793941726857}