Critical [CVE-2026-118636] Apache MINA: **UNSUPPORTED WHEN ASSIGNED** JavaNativeMessageDecoder in the MINA 3.0 codec module calls ObjectInputStream.readObject on frame bytes with no class filter, so an application that puts it in front of an untrusted peer is open to gadget-chain RCE
This critical-severity Apache Software Foundation advisory covers CVE-2026-118636; related products: Apache MINA.
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Summary
- *UNSUPPORTED WHEN ASSIGNED**
JavaNativeMessageDecoder in the MINA 3.0 codec module calls ObjectInputStream.readObject() on frame bytes with no class filter, so an application that puts it in front of an untrusted peer is open to gadget-chain RCE.
As the 3.0.0 branch is inactive, we do not plan to release a version that fixes this issue.
Users are recommended to use the latest Apache MINA 2.2.X branch.
- Apache MINA 3.0.0 through 3.0.0-M2
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Mitigation
The source record does not include mitigation steps. That does not mean no fix exists. Read the vendor advisory below for the authoritative guidance.
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
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