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.
Metrics
Affected Vendors & Products
References
History
Wed, 09 Sep 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Wed, 09 Sep 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 09 Sep 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
threat_severity
|
Wed, 09 Sep 2026 08:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Bubblewrap: bubblewrap: symlink traversal via /oldroot allows writing files outside sandbox during setup | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat hummingbird |
|
| Weaknesses | CWE-59 | |
| CPEs | cpe:/a:redhat:hummingbird:1 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
|
| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat hummingbird |
|
| References |
|
|
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: redhat
Published: 2026-09-09T08:34:35.359Z
Updated: 2026-09-09T16:07:46.977Z
Reserved: 2026-09-09T08:08:33.568Z
Link: CVE-2026-87766
Updated: 2026-09-09T16:07:46.977Z
Status : Awaiting Analysis
Published: 2026-09-09T09:17:12.540
Modified: 2026-09-09T17:17:52.587
Link: CVE-2026-87766