CVE-2026-88265
MEDIUM
NVD
CVSS Score
5.6
Severity
MEDIUM
Published
Sep 10, 2026
Vendor
unknown
Description
A flaw was found in crun. After pivot_root, reopening /dev/null for stdio can follow a symlink and attach a host file to container stdio, then change that file's ownership. Affected versions are crun 1.29.1 and earlier. Default configurations that mount a fresh /dev are not exposed. No fixed release is available yet.