{"schema":"threatline.record/2","record":{"id":"CVE-2026-116486","aliases":["GHSA-743r-26gf-97ff"],"summary":"Objenesis before 3.6 Type Confusion via Class Name Instantiator Cache","details":"Objenesis before 3.6 contains a type confusion vulnerability that allows code in one class loader to substitute objects into another by exploiting instantiator caching keyed on class name. When a shared ObjenesisStd instance caches instantiators by clazz.getName() in ObjenesisBase.getInstantiatorOf(), same-named classes collide, causing newInstance() to return wrong-class objects and ClassCastException failures.","categories":["Unclassified"],"product":"objenesis","vendor":"easymock","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116486","source_modified_at":"2026-10-26T16:15:59.231Z","fetched_at":"2026-10-26T19:10:57.178988Z","product":"objenesis","vendor":"easymock","versions":[{"version":"0","status":"affected","versionType":"custom","lessThan":"3.6"},{"version":"3.6","status":"unaffected","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116486","source_modified_at":"2026-10-26T16:15:59.231Z","fetched_at":"2026-10-26T19:10:57.178988Z","package":{"name":"objenesis","ecosystem":null},"version":"3.6","basis":"first unaffected version stated in the CVE record"}],"cvss":2,"severity":"Low","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-26T13:08:52.051Z","modified_at":"2026-10-26T16:15:59.231Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-116486","fetched_at":"2026-10-26T19:10:57.178988Z","source_modified_at":"2026-10-26T16:15:59.231Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/easymock/objenesis/commit/40f90f435a06b16af74a7398f0007faeaa52c00c","tags":["patch"]},{"source":"CVE List","url":"https://github.com/easymock/objenesis/security/advisories/GHSA-743r-26gf-97ff","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://github.com/easymock/objenesis/blob/fb36e5c377ed1bf57a18386fa79d2eed4ddfcfac/main/src/main/java/org/objenesis/ObjenesisBase.java#L92-L95","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/easymock/objenesis","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/objenesis-before-3.6-type-confusion-via-class-name-instantiator-cache","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-26T15:38:10.344457Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-26T16:15:59.231Z","content_hash":"d68f8ff6e6c7a746b4aa257d1e873b66e727f9aad86344adc742a9c4abaac524"}}