CVE-2026-88265
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.6
- CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N
- CWE
- CWE-59
- Published
- 2026-09-10
- Last modified
- 2026-09-10
Weakness type
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