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CVE-2021-21236 · cross-distro fix matrix

CVE-2021-21236: CairoSVG is a Python (pypi) package. CairoSVG is an SVG converter based on Cairo. In CairoSVG before version 2.5.1, there is a regular expression denial of service (REDoS) vulnerability. When processing SVG files, the python package CairoSVG uses two regular expressions which are vulnerable to Regul

Affects 8 Linux releases across 8 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-21236 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • cairosvg→ fixed in2.5.0-1.1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y cairosvg

Debian bookworm

Source: Debian Security Tracker

  • cairosvg→ fixed in2.5.0-1.1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y cairosvg

Debian trixie

Source: Debian Security Tracker

  • cairosvg→ fixed in2.5.0-1.1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y cairosvg

Alpine v3.20

Source: Alpine secdb

  • py3-cairosvg→ fixed in2.5.1-r0
    apk update && apk add --upgrade py3-cairosvg

Alpine v3.21

Source: Alpine secdb

  • py3-cairosvg→ fixed in2.5.1-r0
    apk update && apk add --upgrade py3-cairosvg

Alpine edge

Source: Alpine secdb

  • py3-cairosvg→ fixed in2.5.1-r0
    apk update && apk add --upgrade py3-cairosvg

Alpine v3.18

Source: Alpine secdb

  • py3-cairosvg→ fixed in2.5.1-r0
    apk update && apk add --upgrade py3-cairosvg

Alpine v3.19

Source: Alpine secdb

  • py3-cairosvg→ fixed in2.5.1-r0
    apk update && apk add --upgrade py3-cairosvg
Are YOU affected by CVE-2021-21236?

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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