CVE-2026-49485

Summary: CVE-2026-49485 affects HAPI FHIR’s FHIRPathEngine (matches(), matchesFull(), replaceMatches()) where user-controlled regex patterns are compiled via Java’s regex engine, enabling ReDoS and CPU exhaustion. The issue exists in implementations prior to version 6.9.9 and 6.9.4.2. An attacker...