CVE-2026-12975: Red Hat Build Of Apicurio Registry

High severity, CVSS 8.5. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Red Hat Build Of Apicurio Registry: from 3.0, up to and including 3.2

Published 2026-06-25. Last modified 2026-08-26.