CVE-2026-27459 · cross-distro fix matrix

CVE-2026-27459: pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to `set_cookie_generate_callback` returned a cookie value greater than 256 bytes, pyOpenSSL would overflow an OpenSSL provided buffer. Starting in version 26.

Affects 2 Linux releases across 2 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2026-27459 has a known fix. Run the listed command on that distro to remediate.

Debian trixie

Source: Debian Security Tracker

pyopenssl→ fixed in25.0.0-1+deb13u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y pyopenssl
```

Alpine edge

Source: Alpine secdb

py3-openssl→ fixed in26.1.0-r0

apk update && apk add --upgrade py3-openssl

Are YOU affected by CVE-2026-27459?

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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