# OPENSUSE-SU-2026:21213-1: containerd security update

OPENSUSE-SU-2026:21213-1, released July 2, 2026, fixes 10 CVEs in containerd (version 1.7.33-160000.1.1). None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/opensuse-su-2026-21213-1
- Platform: Linux
- Released: Jul 2, 2026
- Priority: Urgent (Closes CVE-2026-39821, rated Critical)
- CVEs: 10, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://osv.dev/vulnerability/openSUSE-SU-2026:21213-1

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [containerd](https://patchblox.com/security/data/product/linux/containerd.md) | opensuse-leap 16.0 | 1.7.33-160000.1.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-39821](https://patchblox.com/security/data/cve/CVE-2026-39821.md) | Urgent | Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/net/idna | 10.0 | 0.0183 |  |
| [CVE-2026-33186](https://patchblox.com/security/data/cve/CVE-2026-33186.md) | High | gRPC-Go has an authorization bypass via missing leading slash in :path | 9.1 | 0.0162 |  |
| [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-2026-34986](https://patchblox.com/security/data/cve/CVE-2026-34986.md) | High | rh-podman-desktop: Go JOSE provides an implementation of the Javascript Object Signing and Encryption set of standards in Go, including... | 9.1 | 0.0066 |  |
| [CVE-2026-35469](https://patchblox.com/security/data/cve/CVE-2026-35469.md) | High | SpdyStream: DOS on CRI | 8.1 | 0.0066 |  |
| [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-2024-25621](https://patchblox.com/security/data/cve/CVE-2024-25621.md) | High | containerd affected by a local privilege escalation via wide permissions on CRI directory | 7.8 | 0.0017 |  |
| [CVE-2026-46680](https://patchblox.com/security/data/cve/CVE-2026-46680.md) | High | containerd: containerd is an open-source container runtime | 7.8 | 0.0016 |  |
| [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 |  |
| [CVE-2025-64329](https://patchblox.com/security/data/cve/CVE-2025-64329.md) | Routine | containerd CRI server: Host memory exhaustion through Attach goroutine leak | 5.5 | 0.0017 |  |

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Data as of 2026-11-11T13:47:35Z 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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