OGNL stricter-invocation block list bypass via java.lang.reflect reflection proxies

影響: maven:ognl:ognl <= 3.4.12 → 3.4.13

OGNL's optional stricter invocation mode maintains a block list that prevents expressions from directly calling methods on dangerous classes such as Runtime, ProcessBuilder, and ClassLoader. The block list filters on the declaring class of the method OGNL invokes. Because java.lang.reflect.Method (and Constructor/Field) are not on the list, an expression can use reflection as a proxy — someMethod.invoke(target, args) — to reach a blocked method. The real call (e.g. ProcessBuilder.start(…

GitHub Advisory Database에서 읽기

2026. 10. 22. 오전 01:31, GitHub Advisory Database에서 "OGNL stricter-invocation block list bypass via java.lang.reflect reflection proxies"을(를) 게시했습니다 (유형: 취약점 권고). 심각도는 "보통"(medium)입니다. 관련 기술: Java. CVE: CVE-2026-113730.