CVE catalog

CVE-2026-41635

Severity: Critical · CVSS 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: Apr 27, 2026, 8:59:50 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.62% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	mina	bookworm	`1.1.7.dfsg-13`	vulnerable
Debian	mina2	sid	`2.2.9-1`	fixed
Debian	mina2	forky	`2.2.9-1`	fixed
Debian	mina2	trixie	`2.2.1-4`	vulnerable
Debian	mina2	bookworm	`2.2.1-3`	vulnerable
Cpe	mina	Not reported	Not reported	vulnerable
Cpe	mina2	Not reported	Not reported	vulnerable
Cpe	mina	Not reported	`2.0.28`	fixed
Cpe	mina	Not reported	`2.1.11`	fixed
Cpe	mina	Not reported	`2.2.6`	fixed
Cpe	mina	Not reported	`2.2.6`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	mina	source	bookworm	`(unfixed)`	not yet assigned	Not reported	Not reported
Debian	mina2	source	sid	`2.2.9-1`	not yet assigned	Not reported	[1135167]
Debian	mina2	source	forky	`2.2.9-1`	not yet assigned	Not reported	[1135167]
Debian	mina2	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1135167]
Debian	mina2	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1135167]
Cpe	mina	cpe	Not reported	`2.0.28`	Not reported	Not reported	Not reported
Cpe	mina	cpe	Not reported	`2.1.11`	Not reported	Not reported	Not reported
Cpe	mina	cpe	Not reported	`2.2.6`	Not reported	Not reported	Not reported
Cpe	mina	cpe	Not reported	`2.2.6`	Not reported	NVD-CVE-2026-41635	Not reported

[Debian bug #1135167]

Notes

[bookworm] mina: Minor issue [trixie] mina2: Minor issue [bookworm] mina2: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libmina2-java]Affected
Source package: [mina2]
Details (2)
- 2.2.1-3 · all · bookworm
  Affected
  nvd · mina2 · debian · bookworm; nvd · mina2 · debian · 12
- 2.2.1-3 · all · bookworm
  Affected
  nvd · mina2 · debian · bookworm; nvd · mina2 · debian · 12
[libmina-java]Affected
Source package: [mina]
Details (2)
- 1.1.7.dfsg-13 · all · bookworm
  Affected
  nvd · mina · debian · bookworm; nvd · mina · debian · 12
- 1.1.7.dfsg-13 · all · bookworm
  Affected
  nvd · mina · debian · bookworm; nvd · mina · debian · 12
[libmina-java-doc]Affected
Source package: [mina]
Details (2)
- 1.1.7.dfsg-13 · all · bookworm
  Affected
  nvd · mina · debian · bookworm; nvd · mina · debian · 12
- 1.1.7.dfsg-13 · all · bookworm
  Affected
  nvd · mina · debian · bookworm; nvd · mina · debian · 12
[mina]Affected
Source package: [ruby-mina]
Details (2)
- 0.3.7-1.1 · all · bookworm
  Affected
  nvd · mina · debian · bookworm; nvd · mina · debian · 12
- 0.3.7-1.1 · all · bookworm
  Affected
  nvd · mina · debian · bookworm; nvd · mina · debian · 12

[Debian 13 (Trixie)]

[libmina2-java]Affected
Source package: [mina2]
Details (2)
- 2.2.1-4 · all · trixie
  Affected
  nvd · mina2 · debian · 13
- 2.2.1-4 · all · trixie
  Affected
  nvd · mina2 · debian · 13

Observed: Oct 26, 2026, 9:21:52 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]