objenesis: Objenesis before 3.6 contains a type confusion vulnerability that allows code in one class loader to substitute objec...
CVE-2026-116486 is fixed in objenesis on 1 platform by DEBIAN-CVE-2026-116486 (version 3.6-1), released October 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| objenesis · Debian 14 | 3.6-1 | DEBIAN-CVE-2026-116486 | Oct 27, 2026 |
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