Description
Apache MINA's AbstractIoBuffer.resolveClass() contains two branches, one of them (for static classes or primitive types) does not check the class at all, bypassing the classname allowlist and allowing arbitrary code to be executed.
The fix checks if the class is present in the accepted class filter before calling Class.forName().
Affected versions are Apache MINA 2.0.0 <= 2.0.27, 2.1.0 <= 2.1.10, and
2.2.0 <= 2.2.5.
The problem is resolved in Apache MINA 2.0.28, 2.1.11, and 2.2.6 by
applying the classname allowlist earlier.
Affected are applications using Apache MINA that call IoBuffer.getObject().
Applications using Apache MINA are advised to upgrade.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache MINA | 2.2.0 – ≤ 2.2.5, 2.1.0 – ≤ 2.1.10, 2.0.0 – ≤ 2.0.27 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | mina2 | 2.2.9-1 | — |
| Debian 13 | mina2 | No fix yet | — |
| Debian 12 | mina +1 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | mina2 | No fix yet | — |
| Ubuntu 25.10 | mina2 | No fix yet | — |
| Ubuntu 24.04 LTS | mina | No fix yet | — |
| Ubuntu 22.04 LTS | mina | No fix yet | — |
| Ubuntu 20.04 LTS | mina +1 | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | mina +1 | No fix yet | — |
| Ubuntu 16.04 LTS | mina +1 | No fix yet | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | jenkins-2-openjdk-21 +1 | 2.564-r1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.apache.mina:mina-core | >= 2.0.0, < 2.0.28 | 2.0.28 | GHSA-8297-v2rf-2p32 |
| Maven | org.apache.mina:mina-core | >= 2.1.0, < 2.1.11 | 2.1.11 | GHSA-8297-v2rf-2p32 |
| Maven | org.apache.mina:mina-core | >= 2.2.0, < 2.2.6 | 2.2.6 | GHSA-8297-v2rf-2p32 |
Advisories 5
- NCSC-2026-0448 Kwetsbaarheden verholpen in Oracle Fusion Middleware NCSC-NL (Netherlands) · Oct 22, 2026
- WID-SEC-2026-4078 Oracle Fusion Middleware: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 20, 2026
- NCSC-2026-0377 Kwetsbaarheden verholpen in Oracle Enterprise Manager NCSC-NL (Netherlands) · Sep 16, 2026
- WID-SEC-2026-3399 Oracle Enterprise Manager: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 15, 2026
- WID-SEC-2026-2260 IBM Operational Decision Manager: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 8, 2026
References
- https://lists.apache.org/thread/1l91w1mqsb3lwfd504fs045ylxntt2tm vendor-advisory