CVE-2026-46680

containerd is an open-source container runtime. In versions prior to 1.7.32, 2.0.9, 2.2.4 and 2.3.1, containers launched with a numeric User directive that cannot be parsed as a 32-bit integer are incorrectly treated as a username, leading to runAsNonRoot evasion. If a crafted image provides an /etc/passwd file mapping this large numeric string to root, the container ultimately runs as root (UID 0). This allows the Kubernetes runAsNonRoot restriction to be bypassed, causing unexpected behavior for environments that require containers to run as a non-root user. This issue has been fixed in versions 1.7.32, 2.0.9, 2.2.4 and 2.3.1.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/containerd/containerd/security/advisories/GHSA-fqw6-gf59-qr4w	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:linuxfoundation:containerd::::::::
	cpe:2.3:a:linuxfoundation:containerd::::::::
	cpe:2.3:a:linuxfoundation:containerd::::::::
	cpe:2.3:a:linuxfoundation:containerd::::::::

History

02 Jul 2026, 19:39

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8
CPE		cpe:2.3:a:linuxfoundation:containerd::::::::
First Time		Linuxfoundation containerd Linuxfoundation
References	~~() https://github.com/containerd/containerd/security/advisories/GHSA-fqw6-gf59-qr4w -~~	() https://github.com/containerd/containerd/security/advisories/GHSA-fqw6-gf59-qr4w - Mitigation, Vendor Advisory

01 Jul 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-01 18:16

Updated : 2026-07-03 04:17

NVD link : CVE-2026-46680

Mitre link : CVE-2026-46680

CVE.ORG link : CVE-2026-46680

JSON object : View

Products Affected

linuxfoundation

containerd

CWE

CWE-269

Improper Privilege Management

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