CVE-2026-41635

NameCVE-2026-41635
DescriptionApache 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1135167

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mina (PTS)bookworm, bullseye1.1.7.dfsg-13vulnerable
mina2 (PTS)bullseye2.1.4-2vulnerable
bookworm2.2.1-3vulnerable
forky, sid, trixie2.2.1-4vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
minasource(unstable)(unfixed)
mina2source(unstable)(unfixed)1135167

Notes

https://lists.apache.org/thread/1l91w1mqsb3lwfd504fs045ylxntt2tm

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