CVE-2026-22184 · cross-distro fix matrix

CVE-2026-22184: zlib versions up to and including 1.3.1.2 include a global buffer overflow in the untgz utility located under contrib/untgz. The vulnerability is limited to the standalone demonstration utility and does not affect the core zlib compression library. The flaw occurs when a user executes the untgz comm

Affects 6 Linux releases across 6 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2026-22184 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

zlib→ fixed in1:1.2.6.dfsg-1urgency: unimportant
```
sudo apt-get install --only-upgrade -y zlib
```

Debian bookworm

Source: Debian Security Tracker

zlib→ fixed in1:1.2.6.dfsg-1urgency: unimportant
```
sudo apt-get install --only-upgrade -y zlib
```

Debian trixie

Source: Debian Security Tracker

zlib→ fixed in1:1.2.6.dfsg-1urgency: unimportant
```
sudo apt-get install --only-upgrade -y zlib
```

Alpine v3.20

Source: Alpine secdb

zlib→ fixed in1.3.2-r0
```
apk update && apk add --upgrade zlib
```

Alpine v3.21

Source: Alpine secdb

zlib→ fixed in1.3.2-r0
```
apk update && apk add --upgrade zlib
```

Alpine edge

Source: Alpine secdb

zlib→ fixed in1.3.2-r0
```
apk update && apk add --upgrade zlib
```

Are YOU affected by CVE-2026-22184?

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-2026-22184dropped 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.

See StackPatch ($99 lifetime)