GHSA-f2wh-grmh-r6jm: org.apache.mina:mina-core (CVE-2026-41409)

Apache MINA Vulnerable to Deserialization of Untrusted Data (CVE-2024-52046 Incomplete Fix)

CVSS 9.8 CriticalCriticalEPSS 0.0043 · 37th percentile

Critical, because:

CVSS score 9.8: 9.0 or more.

Published by the GitHub Advisory Database at 27 Apr 2026, 12:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

Package	Ecosystem	Affected	Fixed in
org.apache.mina:mina-core	Maven	>=2.0.0, <2.0.28 \|\| >=2.1.0, <2.1.11 \|\| >=2.2.0, <2.2.6	2.0.28, 2.1.11, 2.2.6

Identifiers

GHSA-f2wh-grmh-r6jm · CVE-2026-41409

Weakness (CWE)

CWE-502

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Apache MINA mina-core versions 2.0.0 through 2.0.27, 2.1.0 through 2.1.10, and 2.2.0 through 2.2.5 are affected. The incomplete fix for CVE-2024-52046 allowed a static initializer in a class to run before the classname allowlist was applied during deserialization in IoBuffer.getObject(), so applications calling that method may be exposed to attacks on untrusted data. Upgrade mina-core to 2.0.28, 2.1.11, or 2.2.6, matching your release line.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.8	Critical	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CNA (apache)

CISA KEV Not listed.
EPSS 0.0043, the 37th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:17 UTC First seen by agentprime
31 Oct 2026, 14:17 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.