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CVE-2023-26303 · cross-distro fix matrix

CVE-2023-26303: Denial of service could be caused to markdown-it-py, before v2.2.0, if an attacker was allowed to force null assertions with specially crafted input.

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

Fix per ecosystem

Each block below is a distro release where CVE-2023-26303 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

  • markdown-it-py→ fixed in2.1.0-5urgency: not yet assigned
    sudo apt-get install --only-upgrade -y markdown-it-py

Debian trixie

Source: Debian Security Tracker

  • markdown-it-py→ fixed in2.1.0-5urgency: not yet assigned
    sudo apt-get install --only-upgrade -y markdown-it-py
Are YOU affected by CVE-2023-26303?

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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CVE-2023-26303dropped 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.

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