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CVE-2021-23518 · cross-distro fix matrix

CVE-2021-23518: The package cached-path-relative before 1.1.0 are vulnerable to Prototype Pollution via the cache variable that is set as {} instead of Object.create(null) in the cachedPathRelative function, which allows access to the parent prototype properties when the object is used to create the cached relative

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-23518 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

  • node-cached-path-relative→ fixed in1.0.2-1+deb11u1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y node-cached-path-relative

Debian bookworm

Source: Debian Security Tracker

  • node-cached-path-relative→ fixed in1.1.0+~1.0.0-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y node-cached-path-relative

Debian trixie

Source: Debian Security Tracker

  • node-cached-path-relative→ fixed in1.1.0+~1.0.0-1urgency: not yet assigned
    sudo apt-get install --only-upgrade -y node-cached-path-relative
Are YOU affected by CVE-2021-23518?

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
Continuous monitoring beats manual checking

CVE-2021-23518dropped 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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