CVE-2026-12318 · cross-distro fix matrix

CVE-2026-12318: Haruto Kimura discovered that NSS had incorrecty handled parsing PKCS#11

Affects 7 Linux releases across 19 (distro × package) combinations. First disclosed: 2026-06-16.

CVSS v3:HIGH · 7.3(NVD-published)

Fix per ecosystem

Each block below is a distro release where CVE-2026-12318 has a known fix. Run the listed command on that distro to remediate.

Ubuntu jammy

Source: Ubuntu USN

nss→ fixed in2:3.98-0ubuntu0.22.04.4USN-8481-1
```
sudo apt-get install --only-upgrade -y nss
```
libnss3→ fixed in2:3.98-0ubuntu0.22.04.4USN-8481-1
```
sudo apt-get install --only-upgrade -y libnss3
```
libnss3-dev→ fixed in2:3.98-0ubuntu0.22.04.4USN-8481-1
```
sudo apt-get install --only-upgrade -y libnss3-dev
```
libnss3-tools→ fixed in2:3.98-0ubuntu0.22.04.4USN-8481-1
```
sudo apt-get install --only-upgrade -y libnss3-tools
```

Ubuntu noble

Source: Ubuntu USN

nss→ fixed in2:3.98-1ubuntu0.2USN-8481-1

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

libnss3→ fixed in2:3.98-1ubuntu0.2USN-8481-1

sudo apt-get install --only-upgrade -y libnss3

libnss3-dev→ fixed in2:3.98-1ubuntu0.2USN-8481-1

sudo apt-get install --only-upgrade -y libnss3-dev

libnss3-tools→ fixed in2:3.98-1ubuntu0.2USN-8481-1

sudo apt-get install --only-upgrade -y libnss3-tools

Ubuntu questing

Source: Ubuntu USN

nss→ fixed in2:3.114-1ubuntu0.2USN-8481-1
```
sudo apt-get install --only-upgrade -y nss
```
libnss3→ fixed in2:3.114-1ubuntu0.2USN-8481-1
```
sudo apt-get install --only-upgrade -y libnss3
```
libnss3-dev→ fixed in2:3.114-1ubuntu0.2USN-8481-1
```
sudo apt-get install --only-upgrade -y libnss3-dev
```
libnss3-tools→ fixed in2:3.114-1ubuntu0.2USN-8481-1
```
sudo apt-get install --only-upgrade -y libnss3-tools
```

Ubuntu resolute

Source: Ubuntu USN

nss→ fixed in2:3.120-1ubuntu2.1USN-8481-1
```
sudo apt-get install --only-upgrade -y nss
```
libnss3→ fixed in2:3.120-1ubuntu2.1USN-8481-1
```
sudo apt-get install --only-upgrade -y libnss3
```
libnss3-dev→ fixed in2:3.120-1ubuntu2.1USN-8481-1
```
sudo apt-get install --only-upgrade -y libnss3-dev
```
libnss3-tools→ fixed in2:3.120-1ubuntu2.1USN-8481-1
```
sudo apt-get install --only-upgrade -y libnss3-tools
```

Debian bullseye

Source: Debian Security Tracker

nss→ fixed in2:3.61-1+deb11u6urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y nss
```

Debian bookworm

Source: Debian Security Tracker

nss→ fixed in2:3.87.1-1+deb12u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y nss
```

Debian trixie

Source: Debian Security Tracker

nss→ fixed in2:3.110-1+deb13u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y nss
```

Are YOU affected by CVE-2026-12318?

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

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