A flaw was found in Apicurio Registry. The ContentTypeUtil.isParsableXml() method creates a SAXParserFactory without enabling secure processing features or disabling external entity resolution. An attacker with artifact-write permission (or unauthenticated when the registry runs with default configuration) can upload a crafted XML document to trigger blind server-side request forgery (SSRF) via external DTD/entity fetch, or cause denial of service via entity expansion.
Exploitability
AV:NAC:LPR:LUI:NScope
S:CImpact
C:LI:NA:H8.5/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:HInput Validation