CVE-2026-1519 · cross-distro fix matrix

CVE-2026-1519: If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries (see: https://kb.isc.org/

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

Fix per ecosystem

Each block below is a distro release where CVE-2026-1519 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

bind9→ fixed in1:9.16.50-1~deb11u5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y bind9
```

Debian bookworm

Source: Debian Security Tracker

bind9→ fixed in1:9.18.47-1~deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y bind9
```

Debian trixie

Source: Debian Security Tracker

bind9→ fixed in1:9.20.21-1~deb13u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y bind9
```

Alpine v3.20

Source: Alpine secdb

bind→ fixed in9.18.47-r0
```
apk update && apk add --upgrade bind
```

Alpine v3.21

Source: Alpine secdb

bind→ fixed in9.18.47-r0
```
apk update && apk add --upgrade bind
```

Alpine edge

Source: Alpine secdb

bind→ fixed in9.20.21-r0
```
apk update && apk add --upgrade bind
```

Are YOU affected by CVE-2026-1519?

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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