{"id":"CVE-2026-113730","revision":"d4d81e61493e4683858ae797a85cf97c","records":[{"revision":"d4d81e61493e4683858ae797a85cf97c","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-113730","aliases":[],"title":"OGNL stricter-invocation block list bypass via java.lang.reflect reflection proxies","description":"OGNL is an Object Graph Navigation Library for Java. Prior to 3.4.13, the optional stricter-invocation mode in OgnlRuntime.invokeMethod checks the declaring class of the method that OGNL invokes but does not block java.lang.reflect.Method, java.lang.reflect.Constructor, or java.lang.reflect.Field. An attacker-controlled expression can invoke one of these reflection objects as a proxy for a method on a blocked class, causing the real operation to execute inside JDK reflection without passing through the stricter-invocation check again. Exploitation requires an application to evaluate untrusted OGNL expressions, use the default or an equivalently permissive MemberAccess that permits reflection, and rely on stricter invocation as a sandbox. Applications using a restrictive MemberAccess, including Apache Struts with SecurityMemberAccess, are not affected by this bypass. This issue is fixed in 3.4.13.","state":0,"publishedAt":"2026-10-20T21:24:24.093+00:00","modifiedAt":"2026-10-21T15:51:56.22+00:00","affected":[{"ecosystem":"Vendor product","name":"ognl","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"orphan-oss\",\n                    \"product\": \"ognl\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 3.4.13\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","score":5.6,"severity":"MEDIUM"}],"references":["https://github.com/orphan-oss/ognl/security/advisories/GHSA-crwc-vw2r-qr6m","https://github.com/orphan-oss/ognl/commit/16396fa4b560221294c2ab9ca04b76b161115e7d","https://github.com/orphan-oss/ognl/commit/f4c17f794754d516ea799c36ed8524d1b7fb98e2","https://github.com/orphan-oss/ognl/releases/tag/OGNL_3_4_13"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-113730","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-113730","identifiers":["CVE-2026-113730"]},"retained":false,"historicalAffected":[]}],"coverage":[]}