CVE-2026-42998 · cross-distro fix matrix

CVE-2026-42998: An issue was discovered in OpenStack Keystone before 29.0.2. The Keystone application credential authentication plugin does not verify that the user supplied in the authentication request matches the

Affects 3 Linux releases across 3 (distro × package) combinations. First disclosed: 2026-05-28.

CVSS v3:MEDIUM · 6(NVD-published)

Fix per ecosystem

Each block below is a distro release where CVE-2026-42998 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

keystone→ fixed in2:18.1.0-1+deb11u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y keystone
```

Debian bookworm

Source: Debian Security Tracker

keystone→ fixed in2:22.0.2-0+deb12u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y keystone
```

Debian trixie

Source: Debian Security Tracker

keystone→ fixed in2:27.0.0-3+deb13u4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y keystone
```

Are YOU affected by CVE-2026-42998?

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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