GHSA-995c-6rp3-4m4x · Severity: critical · Ecosystem: maven — Apache MINA vulnerable to Deserialization of Untrusted Data (CVE-2026-41409 Incomplete Fix)
The fix for CVE-2026-41409 was not applied to the 2.1.X and 2.2.X branches. Here was the original issue description: The fix for CVE-2024-52046 in Apache MINA AbstractIoBuffer.getObject() was incomplete. The classname allowlist of classes allowed to be deserialized was applied too late after a static initializer in a class to be read might already have been executed. Affected versions are Apache MINA 2.1.0 <= 2.1.11, and 2.2.0 <= 2.2.6. The problem is resolved in Apache MINA 2.1.12, and 2.2.7 by applying the classname allowlist earlier. Affected are applications using Apache MINA that call IoBuffer.getObject(). Applications using Apache MINA are advised to upgrade The fix for CVE-2024-52046 in Apache MINA AbstractIoBuffer.getObject() was incomplete. The classname allowlist of classes allowed to be deserialized was applied too late after a static initializer in a class to be read might already have been executed. Affected versions are Apache MINA 2.1.0 <= 2.1.110, and 2.2.0 <= 2.2.6. The problem is resolved in Apache MINA 2.1.12, and 2.2.7 by applying the classname allowlist earlier. Affected are applications using Apache MINA that call IoBuffer.getObject(). Applications using Apache MINA are advised to upgrade
Conclusion & alert: CVE-2026-42778 is rated Moderate Risk (56.5/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.26%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-26 | 0.19% | 0.26% | +0.07% |
| 2 | 2026-05-07 | 0.14% | 0.19% | +0.05% |
| 3 | 2026-05-02 | — | 0.14% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
GHSA-995c-6rp3-4m4x · Severity: critical · Ecosystem: maven — Apache MINA vulnerable to Deserialization of Untrusted Data (CVE-2026-41409 Incomplete Fix)
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
medium | CVE-2026-42778 medium priority: Ubuntu including 1 source packages (mina2), 7 status rows across 7 suites (bionic, focal, jammy, noble, questing, resolute, upstream): needs-triage 7. | https://ubuntu.com/security/CVE-2026-42778 |
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/fhlx5k91hrkgyzh7yk1nghrn3k27gxy0 | Mailing List Patch Vendor Advisory |