Bug 2531223 (CVE-2026-88264) - CVE-2026-88264 crun: crun: /dev/console symlink follow allows root-owned file creation outside the rootfs
Summary: CVE-2026-88264 crun: crun: /dev/console symlink follow allows root-owned file...
Keywords:
Status: NEW
Alias: CVE-2026-88264
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-10 01:53 UTC by OSIDB Bzimport
Modified: 2026-09-10 07:59 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-09-10 01:53:41 UTC 
A flaw was found in crun. During terminal setup, when the OCI configuration does not mount /dev, crun unlinks and recreates /dev/console without preventing symlink follows. A malicious image can make /dev/console a symlink so that crun creates a root-owned file outside the container rootfs. Affected versions are crun 1.29.1 and earlier. This is not CVE-2026-47766, which addressed following a rootfs /dev directory symlink and was fixed in crun 1.28. No fixed release is published yet.
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