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VulnerabilityPublished

CVE-2026-116486: easymock objenesis · Symbolic Name not Mapping to Correct Object

Affects easymock objenesisSource CVE Database V5

0

Not known to be exploited · CVSS 2.0 Low : upgrade to 3.6 when convenient.

Data as of 26 Oct 2026, 16:53 UTC

CVSS 4.0 base score
2.0Low
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 3.6
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade objenesis and easymock/objenesis to 3.6.

Affected software

ProductAffectedFixed in
easymockobjenesisAffected
  • <3.6
Fixed in
  • 3.6
Maveneasymock/objenesispkg:maven/easymock/objenesisOther threatsAffected
  • <3.6
Fixed in
  • 3.6

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade Objenesis to version 3.6 or later, where this type confusion vulnerability is fixed. No other mitigations are indicated.

Description

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

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