CVE-2026-87766
- Source
- https://cve.org/CVERecord?id=CVE-2026-87766
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-87766.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-87766
- Aliases
-
- GHSA-pxhw-h44j-8pfx
- Downstream
- Published
- 2026-09-09T08:34:35Z
- Modified
- 2026-09-11T03:48:22Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- Bubblewrap: bubblewrap: symlink traversal via /oldroot allows writing files outside sandbox during setup
- Details
-
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.
- Database specific
{ "cna_assigner": "redhat", "cwe_ids": [ "CWE-59" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87766.json" }- References
-
- http://www.openwall.com/lists/oss-security/2026/09/09/3
- https://access.redhat.com/downloads/content/package-browser/
- https://bugs.debian.org/1145655
- https://github.com/containers/bubblewrap/releases/tag/v0.12.0
- https://www.openwall.com/lists/oss-security/2026/08/27/7
- https://access.redhat.com/security/cve/CVE-2026-87766
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87766.json
- https://github.com/containers/bubblewrap/security/advisories/GHSA-pxhw-h44j-8pfx
- https://nvd.nist.gov/vuln/detail/CVE-2026-87766
- https://bugzilla.redhat.com/show_bug.cgi?id=2530542