ALSA-2026:85306

ALSA-2026:85306 · Important: bubblewrap security update

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Bubblewrap (/usr/bin/bwrap) is a core execution engine for unprivileged containers that works as a setuid binary on kernels without user namespaces. Security Fix(es): * bubblewrap: symlink traversal via /oldroot allows writing files outside sandbox during setup (CVE-2026-87766) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fix available

Published

2026-10-19T00:00:00Z

Updated

2026-10-20T16:00:04.441428716Z

Stack: system

Check your server →