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CVE-2021-26252 · cross-distro fix matrix

CVE-2021-26252: A flaw was found in htmldoc in v1.9.12. Heap buffer overflow in pspdf_prepare_page(),in ps-pdf.cxx may lead to execute arbitrary code and denial of service.

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-26252 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • htmldoc→ fixed in1.9.11-4urgency: unimportant
    sudo apt-get install --only-upgrade -y htmldoc

Debian bookworm

Source: Debian Security Tracker

  • htmldoc→ fixed in1.9.11-4urgency: unimportant
    sudo apt-get install --only-upgrade -y htmldoc

Debian trixie

Source: Debian Security Tracker

  • htmldoc→ fixed in1.9.11-4urgency: unimportant
    sudo apt-get install --only-upgrade -y htmldoc
Are YOU affected by CVE-2021-26252?

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-2021-26252dropped 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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