CVE-2026-116486Published

Objenesis before 3.6 Type Confusion via Class Name Instantiator Cache

Exact source revision recorded 26 Oct 2026 17:35:31 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-116486

Published

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.

Source published: 26 Oct 2026 13:08:52 UTC
Source modified: 26 Oct 2026 16:15:59 UTC
Observed here: 26 Oct 2026 17:35:31 UTC
Source terms: CVE Program Terms of Use

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CVSS 4.0 · 2.0 CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS 3.1 · 4.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L