# containerd 1.6.12-0ubuntu1~18.04.1+esm4: containerd 1.6.12-0ubuntu1~18.04.1+esm4 for Ubuntu 18.04.6 LTS (bionic)

containerd 1.6.12-0ubuntu1~18.04.1+esm4, released June 26, 2026, fixes 3 CVEs in containerd. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-bionic-containerd-1.6.12-0ubuntu1-18.04.1-esm4
- Platform: Linux
- Released: Jun 26, 2026
- Priority: High (Closes CVE-2026-33814, high severity)
- CVEs: 3, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [containerd](https://patchblox.com/security/data/product/linux/containerd.md) | Ubuntu 18.04.6 LTS (bionic) | 1.6.12-0ubuntu1~18.04.1+esm4 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-33814](https://patchblox.com/security/data/cve/CVE-2026-33814.md) | High | Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net | 7.5 | 0.0084 |  |
| [CVE-2026-53488](https://patchblox.com/security/data/cve/CVE-2026-53488.md) | High | containerd: CRI plugin propagates labels from an image config to a container without validation (bsc#1268430). | 8.8 | 0.0018 |  |
| [CVE-2026-47262](https://patchblox.com/security/data/cve/CVE-2026-47262.md) | Routine | containerd: Denial of Service (DoS) condition via a maliciously crafted image (bsc#1268441). | 5.5 | 0.0027 |  |

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Data as of 2026-11-12T19:57:06Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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