CVE-2026-118636
Apache MINA: Unsafe Deserialization (CWE-502) in JavaNativeMessageDecoder
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Apache MINA: Unsafe Deserialization (CWE-502) in JavaNativeMessageDecoder
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.
- Record
CVE-2026-118636- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
EUVDEUVD-2026-114734
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.
- Record
EUVD-2026-114734- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-gcvh-r85p-53mh
**UNSUPPORTED WHEN ASSIGNED** JavaNativeMessageDecoder in the MINA 3.0 codec module calls...
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.
- Record
GHSA-gcvh-r85p-53mh- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-118636- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-502
- Updated
- 2026-11-03
OSVUBUNTU-CVE-2026-118636
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.
- Record
UBUNTU-CVE-2026-118636- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-05
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
minaUbuntu:16.04:LTS |
All versions, plus listed versions 1.1.7.dfsg-11 |
None known |
mina2Ubuntu:16.04:LTS |
All versions, plus listed versions 2.0.7+dfsg-22.0.9-12.0.9-2 |
None known |
minaUbuntu:18.04:LTS |
All versions, plus listed versions 1.1.7.dfsg-111.1.7.dfsg-12 |
None known |
mina2Ubuntu:18.04:LTS |
All versions, plus listed versions 2.0.16-2 |
None known |
minaUbuntu:20.04:LTS |
All versions, plus listed versions 1.1.7.dfsg-13 |
None known |
mina2Ubuntu:20.04:LTS |
All versions, plus listed versions 2.0.19-2 |
None known |
minaUbuntu:22.04:LTS |
All versions, plus listed versions 1.1.7.dfsg-13 |
None known |
mina2Ubuntu:Pro:22.04:LTS |
All versions, plus listed versions 2.1.4-22.1.5-12.1.5-1ubuntu0.1~esm1 |
None known |
minaUbuntu:24.04:LTS |
All versions, plus listed versions 1.1.7.dfsg-131.1.7.dfsg-13ubuntu1 |
None known |
mina2Ubuntu:Pro:24.04:LTS |
All versions, plus listed versions 2.2.1-32.2.1-3ubuntu0.1~esm1 |
None known |
mina2Ubuntu:26.10 |
All versions, plus listed versions 2.2.1-42.2.1-4ubuntu12.2.9-1 |
None known |
mina2Ubuntu:Pro:26.04:LTS |
All versions, plus listed versions 2.2.1-42.2.1-4ubuntu0.1~esm1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, facts, references | NVD, OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-118636 is a critical vulnerability (CVSS 9.8) in Apache Software Foundation Mina, published October 31, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.57%, the 47th percentile. No source names a fixed version.