CVE-2026-42778 · cross-distro fix matrix

CVE-2026-42778: It was discovered that Apache MINA lacked an acceptMatchers allowlist

Affects 3 Linux releases across 7 (distro × package) combinations. First disclosed: 2026-05-01.

CVSS v3:CRITICAL · 9.8(NVD-published)

Fix per ecosystem

Each block below is a distro release where CVE-2026-42778 has a known fix. Run the listed command on that distro to remediate.

Ubuntu jammy

Source: Ubuntu USN

mina2→ fixed in2.1.5-1ubuntu0.1~esm1USN-8465-1
```
sudo apt-get install --only-upgrade -y mina2
```
libmina2-java→ fixed in2.1.5-1ubuntu0.1~esm1USN-8465-1
```
sudo apt-get install --only-upgrade -y libmina2-java
```
libmina2-java-doc→ fixed in2.1.5-1ubuntu0.1~esm1USN-8465-1
```
sudo apt-get install --only-upgrade -y libmina2-java-doc
```

Ubuntu noble

Source: Ubuntu USN

mina2→ fixed in2.2.1-3ubuntu0.1~esm1USN-8465-1
```
sudo apt-get install --only-upgrade -y mina2
```
libmina2-java→ fixed in2.2.1-3ubuntu0.1~esm1USN-8465-1
```
sudo apt-get install --only-upgrade -y libmina2-java
```

Ubuntu resolute

Source: Ubuntu USN

mina2→ fixed in2.2.1-4ubuntu0.1~esm1USN-8465-1
```
sudo apt-get install --only-upgrade -y mina2
```
libmina2-java→ fixed in2.2.1-4ubuntu0.1~esm1USN-8465-1
```
sudo apt-get install --only-upgrade -y libmina2-java
```

Are YOU affected by CVE-2026-42778?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

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