# SUSE-SU-2026:2830-1: warewulf4 security update

SUSE-SU-2026:2830-1, released July 9, 2026, fixes 4 CVEs in warewulf4 (version 4.7.0-150500.6.42.1). None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/suse-su-2026-2830-1
- Platform: Linux
- Released: Jul 9, 2026
- Priority: Urgent (Closes CVE-2026-39821, rated Critical)
- CVEs: 4, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://osv.dev/vulnerability/SUSE-SU-2026:2830-1

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [warewulf4](https://patchblox.com/security/data/product/linux/warewulf4.md) | sles 15.7 | 4.7.0-150500.6.42.1 |

## 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-2026-33814](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 | osbuild-composer: A service for building customized OS artifacts, such as VM images and OSTree commits, that uses osbuild under the hood | 9.1 | 0.0066 |  |
| [CVE-2025-69725](https://patchblox.com/security/data/cve/CVE-2025-69725.md) | Routine | golang-github-go-chi-chi: An Open Redirect vulnerability in the go-chi/chi >=5.2.2 RedirectSlashes function allows remote attackers to redirect... | 4.7 | 0.0026 |  |

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Data as of 2026-11-10T13:56:55Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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