CVE-2026-41409 | Apache MINA: CWE-502 Deserialization of Untrusted Data

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 2.0.0 <= 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

Published: 2026-04-27 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-41409 is rated Moderate Risk (51.8/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.45%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-41409

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 2026-06-15 0.28% 0.45% +0.17%
2 2026-05-29 0.18% 0.28% +0.09%
3 2026-05-03 — 0.18% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-41409

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2026-41409

GitHub Security Advisory for CVE-2026-41409

GHSA-f2wh-grmh-r6jm · Severity: critical · Ecosystem: maven — Apache MINA Vulnerable to Deserialization of Untrusted Data (CVE-2024-52046 Incomplete Fix)

OS Trackers for CVE-2026-41409

vendor priority summary link
debian unimportant CVE-2026-41409 unimportant priority: Debian including 2 source packages (mina, mina2), 7 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 3. https://security-tracker.debian.org/tracker/CVE-2026-41409
ubuntu medium CVE-2026-41409 medium priority: Ubuntu including 2 source packages (mina, mina2), 16 status rows across 8 suites (bionic, focal, jammy, noble, questing, resolute, upstream, xenial): needs-triage 14, DNE 2. https://ubuntu.com/security/CVE-2026-41409

Affected software / configurations for CVE-2026-41409

Vendor Product Version Raw CPE
apache mina >= 2.0.0, < 2.0.28 cpe:2.3:a:apache:mina:*:*:*:*:*:*:*:*
apache mina >= 2.1.0, < 2.1.11 cpe:2.3:a:apache:mina:*:*:*:*:*:*:*:*
apache mina >= 2.2.0, < 2.2.6 cpe:2.3:a:apache:mina:*:*:*:*:*:*:*:*

References for CVE-2026-41409

cvelogic Threat Intelligence