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CVE-2026-12993

6.5 medium SSVC exploitation: none Modified
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 6.5 · redhatNVD modified 2026-10-25 22:10

Affected (CPE criteria) 1

  • cpe:2.3:a:redhat:build_of_apicurio_registry:*:*:*:*:*:*:*:*

References 3