CVE-2021-30887 · cross-distro fix matrix

CVE-2021-30887: A logic issue was addressed with improved restrictions. This issue is fixed in macOS Monterey 12.0.1, iOS 15.1 and iPadOS 15.1, watchOS 8.1, tvOS 15.1. Processing maliciously crafted web content may lead to unexpectedly unenforced Content Security Policy.

Affects 6 Linux releases across 9 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2021-30887 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

webkit2gtk→ fixed in2.34.3-1~deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y webkit2gtk
```
wpewebkit→ fixed in2.34.3-1~deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wpewebkit
```

Debian bookworm

Source: Debian Security Tracker

webkit2gtk→ fixed in2.34.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y webkit2gtk
```
wpewebkit→ fixed in2.34.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wpewebkit
```

Debian trixie

Source: Debian Security Tracker

webkit2gtk→ fixed in2.34.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y webkit2gtk
```
wpewebkit→ fixed in2.34.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y wpewebkit
```

Alpine v3.20

Source: Alpine secdb

webkit2gtk→ fixed in2.34.3-r0

apk update && apk add --upgrade webkit2gtk

Alpine v3.18

Source: Alpine secdb

webkit2gtk→ fixed in2.34.3-r0

apk update && apk add --upgrade webkit2gtk

Alpine v3.19

Source: Alpine secdb

webkit2gtk→ fixed in2.34.3-r0

apk update && apk add --upgrade webkit2gtk

Are YOU affected by CVE-2021-30887?

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

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