CVE-2024-21503 · cross-distro fix matrix

CVE-2024-21503: Versions of the package black before 24.3.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the lines_with_leading_tabs_expanded function in the strings.py file. An attacker could exploit this vulnerability by crafting a malicious input that causes a denial of service. Exploiting

Affects 5 Linux releases across 5 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2024-21503 has a known fix. Run the listed command on that distro to remediate.

Debian trixie

Source: Debian Security Tracker

black→ fixed in24.4.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y black
```

Alpine v3.20

Source: Alpine secdb

black→ fixed in24.3.0-r0
```
apk update && apk add --upgrade black
```

Alpine v3.21

Source: Alpine secdb

black→ fixed in24.3.0-r0
```
apk update && apk add --upgrade black
```

Alpine edge

Source: Alpine secdb

black→ fixed in24.3.0-r0
```
apk update && apk add --upgrade black
```

Alpine v3.19

Source: Alpine secdb

black→ fixed in23.12.0-r0
```
apk update && apk add --upgrade black
```

Are YOU affected by CVE-2024-21503?

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

CVE-2024-21503dropped 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.

See StackPatch ($99 lifetime)