{"cve":"CVE-2026-113730","nvd":{"published":"2026-10-20T22:19:30.043","modified":"2026-10-22T17:29:28.470","status":"Awaiting Analysis","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.","cvss_v4":null,"cvss_v3":{"version":"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},"cwes":["CWE-693"],"references":["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","https://github.com/orphan-oss/ognl/security/advisories/GHSA-crwc-vw2r-qr6m"],"products":[],"source":"nvd","synced_at":"2026-10-23T16:39:26.291718493+00:00"},"epss":{"cve":"CVE-2026-113730","score":0.00394,"percentile":0.33355,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-crwc-vw2r-qr6m","url":"https://osv.dev/vulnerability/GHSA-crwc-vw2r-qr6m","summary":"OGNL stricter-invocation block list bypass via java.lang.reflect reflection proxies","modified":"2026-10-21T16:45:04.303510159Z","packages":[{"ecosystem":"Maven","name":"ognl:ognl","purl":"pkg:maven/ognl/ognl","ranges":["<3.4.13"],"fixed":["3.4.13"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}