CVE-2026-3904 · cross-distro fix matrix

CVE-2026-3904: Calling NSS-backed functions that support caching via nscd may call the nscd client side code and in the GNU C Library version 2.36 under high load on x86_64 systems, the client may call memcmp on inputs that are concurrently modified by other processes or threads and crash. The nscd client i

Affects 2 Linux releases across 2 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2026-3904 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

glibc→ fixed in2.36-9urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y glibc
```

Debian trixie

Source: Debian Security Tracker

glibc→ fixed in2.36-9urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y glibc
```

Are YOU affected by CVE-2026-3904?

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-2026-3904dropped 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)