CVE-2026-87766

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.
Configurations

No configuration.

History

20 Oct 2026, 00:19

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:85306 -
  • () https://access.redhat.com/errata/RHSA-2026:85312 -
  • () https://access.redhat.com/errata/RHSA-2026:85322 -

19 Oct 2026, 22:17

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:85309 -
  • () https://access.redhat.com/errata/RHSA-2026:85313 -
  • () https://access.redhat.com/errata/RHSA-2026:85317 -
  • () https://access.redhat.com/errata/RHSA-2026:85319 -
  • () https://access.redhat.com/errata/RHSA-2026:85324 -
  • () https://access.redhat.com/errata/RHSA-2026:85325 -

19 Oct 2026, 21:18

Type Values Removed Values Added
References
  • () https://access.redhat.com/errata/RHSA-2026:85308 -

22 Sep 2026, 23:17

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2026/09/22/23 -

Information

Published : 2026-09-09 09:17

Updated : 2026-10-20 00:19


NVD link : CVE-2026-87766

Mitre link : CVE-2026-87766

CVE.ORG link : CVE-2026-87766


JSON object : View

Products Affected

No product.

CWE
CWE-59

Improper Link Resolution Before File Access ('Link Following')