CVE catalog
CVE-2026-116486
objenesis: CVE-2026-116486
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | objenesis | sid | 3.6-1 | fixed |
| Debian | objenesis | forky | 3.6-1 | fixed |
| Debian | objenesis | trixie | 3.4-2 | vulnerable |
| Debian | objenesis | bookworm | 3.3-3 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | objenesis | source | sid | 3.6-1 | not yet assigned | Not reported | Not reported |
| Debian | objenesis | source | forky | 3.6-1 | not yet assigned | Not reported | Not reported |
| Debian | objenesis | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | objenesis | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libobjenesis-java]Affected
Source package: [objenesis]
Details (2)
3.3-3· all · bookwormAffected
dsa · objenesis · debian · bookworm; dsa · objenesis · debian · 12
3.3-3· all · bookwormAffected
dsa · objenesis · debian · bookworm; dsa · objenesis · debian · 12
[Debian 13 (Trixie)]
- [libobjenesis-java]Affected
Source package: [objenesis]
Details (2)
3.4-2· all · trixieAffected
dsa · objenesis · debian · 13
3.4-2· all · trixieAffected
dsa · objenesis · debian · 13
Observed: