CVE-2026-46680
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
containerd user ID handling bypass allows runAsNonRoot evasion
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
containerd
- Vendor
- containerd
- Product
- containerd
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| < 1.7.32 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 2.0.4, < 2.0.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 2.0.10, < 2.2.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| >= 2.2.5, < 2.3.1 | affected | Unavailable | Unavailable | Unavailable | None listed |