# CVE-2026-46680: containerd: containerd is an open-source container runtime

CVE-2026-46680 is fixed in 4 products on 1 platform, first by OPENSUSE-SU-2026:21072-1, released June 26, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-46680
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 26, 2026

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | containerd Debian 14 | 2.1.9+ds1-1 | [DEBIAN-CVE-2026-46680](https://patchblox.com/security/data/fix/linux/debian-cve-2026-46680.md) | Jul 1, 2026 |
| Linux | containerd opensuse-leap 16.0 | 1.7.33-160000.1.1 | [OPENSUSE-SU-2026:21213-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21213-1.md) | Jul 2, 2026 |
| Linux | govulncheck-vulndb opensuse-leap 16.0 | 0.0.20260723T184607-160000.1.1 | [OPENSUSE-SU-2026:21483-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21483-1.md) | Jul 30, 2026 |
| Linux | runfinch-finch amzn 2023 | 1.17.2-1.amzn2023.0.1 | [ALAS2023-2026-1972](https://patchblox.com/security/data/fix/linux/alas2023-2026-1972.md) | Jul 20, 2026 |
| Linux | trivy opensuse-leap 16.0 | 0.71.2-160000.1.1 | [OPENSUSE-SU-2026:21072-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21072-1.md) | Jun 26, 2026 |

---

Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.