CVE-2026-0994 · cross-distro fix matrix

CVE-2026-0994: USN-8063-1 fixed a vulnerability in Protocol Buffers. This update provides

Affects 2 Linux releases across 21 (distro × package) combinations. First disclosed: 2026-05-26.

Fix per ecosystem

Each block below is a distro release where CVE-2026-0994 has a known fix. Run the listed command on that distro to remediate.

Ubuntu bionic

Source: Ubuntu USN

protobuf→ fixed in3.0.0-9.1ubuntu1.1+esm4USN-8063-2
```
sudo apt-get install --only-upgrade -y protobuf
```
libprotobuf-dev→ fixed in3.0.0-9.1ubuntu1.1+esm4USN-8063-2
```
sudo apt-get install --only-upgrade -y libprotobuf-dev
```
libprotobuf-java→ fixed in3.0.0-9.1ubuntu1.1+esm4USN-8063-2
```
sudo apt-get install --only-upgrade -y libprotobuf-java
```
libprotobuf-lite10→ fixed in3.0.0-9.1ubuntu1.1+esm4USN-8063-2
```
sudo apt-get install --only-upgrade -y libprotobuf-lite10
```
libprotobuf10→ fixed in3.0.0-9.1ubuntu1.1+esm4USN-8063-2
```
sudo apt-get install --only-upgrade -y libprotobuf10
```
libprotoc-dev→ fixed in3.0.0-9.1ubuntu1.1+esm4USN-8063-2
```
sudo apt-get install --only-upgrade -y libprotoc-dev
```
libprotoc10→ fixed in3.0.0-9.1ubuntu1.1+esm4USN-8063-2
```
sudo apt-get install --only-upgrade -y libprotoc10
```
protobuf-compiler→ fixed in3.0.0-9.1ubuntu1.1+esm4USN-8063-2
```
sudo apt-get install --only-upgrade -y protobuf-compiler
```
python-protobuf→ fixed in3.0.0-9.1ubuntu1.1+esm4USN-8063-2
```
sudo apt-get install --only-upgrade -y python-protobuf
```
python3-protobuf→ fixed in3.0.0-9.1ubuntu1.1+esm4USN-8063-2
```
sudo apt-get install --only-upgrade -y python3-protobuf
```

Ubuntu focal

Source: Ubuntu USN

protobuf→ fixed in3.6.1.3-2ubuntu5.2+esm3USN-8063-2
```
sudo apt-get install --only-upgrade -y protobuf
```
libprotobuf-dev→ fixed in3.6.1.3-2ubuntu5.2+esm3USN-8063-2
```
sudo apt-get install --only-upgrade -y libprotobuf-dev
```
libprotobuf-java→ fixed in3.6.1.3-2ubuntu5.2+esm3USN-8063-2
```
sudo apt-get install --only-upgrade -y libprotobuf-java
```
libprotobuf-lite17→ fixed in3.6.1.3-2ubuntu5.2+esm3USN-8063-2
```
sudo apt-get install --only-upgrade -y libprotobuf-lite17
```
libprotobuf17→ fixed in3.6.1.3-2ubuntu5.2+esm3USN-8063-2
```
sudo apt-get install --only-upgrade -y libprotobuf17
```
libprotoc-dev→ fixed in3.6.1.3-2ubuntu5.2+esm3USN-8063-2
```
sudo apt-get install --only-upgrade -y libprotoc-dev
```
libprotoc17→ fixed in3.6.1.3-2ubuntu5.2+esm3USN-8063-2
```
sudo apt-get install --only-upgrade -y libprotoc17
```
protobuf-compiler→ fixed in3.6.1.3-2ubuntu5.2+esm3USN-8063-2
```
sudo apt-get install --only-upgrade -y protobuf-compiler
```
python-protobuf→ fixed in3.6.1.3-2ubuntu5.2+esm3USN-8063-2
```
sudo apt-get install --only-upgrade -y python-protobuf
```
python3-protobuf→ fixed in3.6.1.3-2ubuntu5.2+esm3USN-8063-2
```
sudo apt-get install --only-upgrade -y python3-protobuf
```
ruby-google-protobuf→ fixed in3.6.1.3-2ubuntu5.2+esm3USN-8063-2
```
sudo apt-get install --only-upgrade -y ruby-google-protobuf
```

Are YOU affected by CVE-2026-0994?

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

CVE-2026-0994dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.

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