Synopsis
Important: bubblewrap security update
Description
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.
Affected products
Rocky Linux 9 aarch64
Rocky Linux 9 ppc64le
Rocky Linux 9 s390x
Rocky Linux 9 x86_64
Fixes
2530542
CVEs
CVE-2026-87766
Affected packages
Rocky Linux 9 aarch64 - BaseOS
bubblewrap-0:0.6.3-1.el9_8.1.aarch64.rpm
bubblewrap-0:0.6.3-1.el9_8.1.src.rpm
bubblewrap-debuginfo-0:0.6.3-1.el9_8.1.aarch64.rpm
bubblewrap-debugsource-0:0.6.3-1.el9_8.1.aarch64.rpm
Rocky Linux 9 ppc64le - BaseOS
bubblewrap-0:0.6.3-1.el9_8.1.ppc64le.rpm
bubblewrap-0:0.6.3-1.el9_8.1.src.rpm
bubblewrap-debuginfo-0:0.6.3-1.el9_8.1.ppc64le.rpm
bubblewrap-debugsource-0:0.6.3-1.el9_8.1.ppc64le.rpm
Rocky Linux 9 s390x - BaseOS
bubblewrap-0:0.6.3-1.el9_8.1.s390x.rpm
bubblewrap-0:0.6.3-1.el9_8.1.src.rpm
bubblewrap-debuginfo-0:0.6.3-1.el9_8.1.s390x.rpm
bubblewrap-debugsource-0:0.6.3-1.el9_8.1.s390x.rpm
Rocky Linux 9 x86_64 - BaseOS
bubblewrap-0:0.6.3-1.el9_8.1.src.rpm
bubblewrap-0:0.6.3-1.el9_8.1.x86_64.rpm
bubblewrap-debuginfo-0:0.6.3-1.el9_8.1.x86_64.rpm
bubblewrap-debugsource-0:0.6.3-1.el9_8.1.x86_64.rpm