CVEvulnerability
CVE-2026-87766
8.8 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-09-09
- Last modified
- 2026-10-20
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-59
Description
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.
Related
Weakness · CWE (1)
- CWE-59 Improper Link Resolution Before File Access weakness
References
- https://access.redhat.com/errata/RHSA-2026:85306 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:85308 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:85309 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:85312 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:85313 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:85317 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:85319 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:85322 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:85324 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:85325 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-87766 access.redhat.com
- https://bugs.debian.org/1145655 bugs.debian.org
- https://bugzilla.redhat.com/show_bug.cgi?id=2530542 bugzilla.redhat.com
- https://github.com/containers/bubblewrap/releases/tag/v0.12.0 github.com
- https://github.com/containers/bubblewrap/security/advisories/GHSA-pxhw-h44j-8pfx github.com
- https://www.openwall.com/lists/oss-security/2026/08/27/7 www.openwall.com
- http://www.openwall.com/lists/oss-security/2026/09/09/3 www.openwall.com
- http://www.openwall.com/lists/oss-security/2026/09/22/23 www.openwall.com