CVE-2021-30465

HighCVSS 8.5/10Last modified Jun 17, 2026

Description

runc before 1.0.0-rc95 allows a Container Filesystem Breakout via Directory Traversal. To exploit the vulnerability, an attacker must be able to create multiple containers with a fairly specific mount configuration. The problem occurs via a symlink-exchange attack that relies on a race condition.

Metrics

CVSS 3.1 8.5/10CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Weakness enumeration

CWE-362

Affected software

No affected versions have been published.

Timeline

Published: May 27, 2021
Last modified: Jun 17, 2026
NVD status: Modified

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