Amazon Linux 2023 Security Advisory: ALAS2023-2026-3105
Advisory Released Date: 2026-09-29
Advisory Updated Date: 2026-09-29
Severity:
Important
Issue Overview:
A flaw was found in bubblewrap. During sandbox setup, creating files or directories under the new root can follow a parent symlink onto the host via /oldroot, writing attacker-chosen paths outside the sandbox as the launching user. This happens before the sandboxed process starts. This issue is GHSA-pxhw-h44j-8pfx. It is fixed in bubblewrap 0.12.0. (CVE-2026-87766)
Affected Packages:
bubblewrap
Issue Correction:
Run dnf update bubblewrap --releasever 2023.12.20260928 or dnf update --advisory ALAS2023-2026-3105 --releasever 2023.12.20260928 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation
New Packages:
aarch64:
bubblewrap-debugsource-0.12.0-1.amzn2023.0.1.aarch64
bubblewrap-debuginfo-0.12.0-1.amzn2023.0.1.aarch64
bubblewrap-0.12.0-1.amzn2023.0.1.aarch64
src:
bubblewrap-0.12.0-1.amzn2023.0.1.src
x86_64:
bubblewrap-debuginfo-0.12.0-1.amzn2023.0.1.x86_64
bubblewrap-0.12.0-1.amzn2023.0.1.x86_64
bubblewrap-debugsource-0.12.0-1.amzn2023.0.1.x86_64