CVE-2026-43620 · cross-distro fix matrix

CVE-2026-43620: Calum Hutton discovered that rsync contained a heap-based out-of-bounds

Affects 14 Linux releases across 14 (distro × package) combinations. First disclosed: 2026-05-20.

CVSS v3:MEDIUM · 6.5(NVD-published)

Fix per ecosystem

Each block below is a distro release where CVE-2026-43620 has a known fix. Run the listed command on that distro to remediate.

Ubuntu jammy

Source: Ubuntu USN

rsync→ fixed in3.2.7-0ubuntu0.22.04.6USN-8283-1
```
sudo apt-get install --only-upgrade -y rsync
```

Ubuntu noble

Source: Ubuntu USN

rsync→ fixed in3.2.7-1ubuntu1.4USN-8283-1

sudo apt-get install --only-upgrade -y rsync

Ubuntu questing

Source: Ubuntu USN

rsync→ fixed in3.4.1+ds1-5ubuntu1.2USN-8283-1
```
sudo apt-get install --only-upgrade -y rsync
```

Ubuntu resolute

Source: Ubuntu USN

rsync→ fixed in3.4.1+ds1-7ubuntu0.2USN-8283-1
```
sudo apt-get install --only-upgrade -y rsync
```

Ubuntu bionic

Source: Ubuntu USN

rsync→ fixed in3.1.2-2.1ubuntu1.6+esm3USN-8349-1
```
sudo apt-get install --only-upgrade -y rsync
```

Ubuntu focal

Source: Ubuntu USN

rsync→ fixed in3.1.3-8ubuntu0.9+esm1USN-8349-1
```
sudo apt-get install --only-upgrade -y rsync
```

Ubuntu trusty

Source: Ubuntu USN

rsync→ fixed in3.1.0-2ubuntu0.4+esm3USN-8349-1
```
sudo apt-get install --only-upgrade -y rsync
```

Ubuntu xenial

Source: Ubuntu USN

rsync→ fixed in3.1.1-3ubuntu1.3+esm5USN-8349-1
```
sudo apt-get install --only-upgrade -y rsync
```

Debian bullseye

Source: Debian Security Tracker

rsync→ fixed in3.2.3-4+deb11u4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y rsync
```

Debian bookworm

Source: Debian Security Tracker

rsync→ fixed in3.2.7-1+deb12u5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y rsync
```

Debian trixie

Source: Debian Security Tracker

rsync→ fixed in3.4.1+ds1-5+deb13u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y rsync
```

Alpine v3.20

Source: Alpine secdb

rsync→ fixed in3.4.3-r0
```
apk update && apk add --upgrade rsync
```

Alpine v3.21

Source: Alpine secdb

rsync→ fixed in3.4.3-r0
```
apk update && apk add --upgrade rsync
```

Alpine edge

Source: Alpine secdb

rsync→ fixed in3.4.3-r0
```
apk update && apk add --upgrade rsync
```

Are YOU affected by CVE-2026-43620?

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

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Continuous monitoring beats manual checking

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