CVE-2026-12993
published 2026-06-26CVE-2026-12993: A flaw was found in Apicurio Registry. The DocumentBuilderAccessor correctly blocks external DTD and schema access but does not disable DOCTYPE declarations or…
PriorityP338medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
0.24%
15.4th percentile
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
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apicurio | apicurio-registry-rhel8 | — | — |
| apicurio | apicurio-registry-rhel9 | — | — |
| redhat | build_of_apicurio_registry | 3.0 – 3.2 | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
vendor_redhat6.5MEDIUM
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GHSA
A flaw was found in Apicurio Registry.
ghsa_unreviewed·2026-06-26
CVE-2026-12993 [MEDIUM] CWE-776 A flaw was found in Apicurio Registry.
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.
Red Hat
Apicurio/apicurio-registry: apicurio-registry: XML entity-expansion denial of service via internal DTD subset
vendor_redhat·2026-06-10·CVSS 6.5
CVE-2026-12993 [MEDIUM] CWE-776 Apicurio/apicurio-registry: apicurio-registry: XML entity-expansion denial of service via internal DTD subset
Apicurio/apicurio-registry: apicurio-registry: XML entity-expansion denial of service via internal DTD subset
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.
Package: apicurio/apicurio-registry-rhel8 (Red Hat build of Apicurio Registry 3) - Affected
Package: apicurio/apicurio-registry-rhel9 (Red Hat build of Apicurio Registry 3) - Affected
No detection rules found.
No public exploits indexed.
2026-06-26
Published