LOW 2.0 NVD
CVE-2026-116486
Objenesis before 3.6 contains a type confusion vulnerability that allows code in one class loader to substitute objects into another by exploiting instantiator
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.
References
- https://github.com/easymock/objenesis
- https://github.com/easymock/objenesis/blob/fb36e5c377ed1bf57a18386fa79d2eed4ddfcfac/main/s
- https://github.com/easymock/objenesis/commit/40f90f435a06b16af74a7398f0007faeaa52c00c
- https://github.com/easymock/objenesis/security/advisories/GHSA-743r-26gf-97ff
- https://www.vulncheck.com/advisories/objenesis-before-3.6-type-confusion-via-class-name-in
This low severity vulnerability with a CVSS score of 2.0 was published on 2026-10-26 via NVD.
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