CVE-2026-88265

MediumCVSS 5.6/10Last modified Nov 6, 2026

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.

Metrics

CVSS 3.1 5.6/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N

Weakness enumeration

CWE-59

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Sep 10, 2026
Last modified
Nov 6, 2026
NVD status
Awaiting Analysis

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CVE-2026-88265: Medium severity, CVSS 5.6 | Vulnix