# RHSA-2026:35833: Security update for 34 packages

RHSA-2026:35833, released July 1, 2026, fixes 5 CVEs across 34 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-35833
- Platform: Linux
- Released: Jul 1, 2026
- Priority: High (Closes CVE-2026-42508, high severity)
- CVEs: 5, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:35833

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [aardvark-dns](https://patchblox.com/security/data/product/linux/aardvark-dns.md) | RHEL 8 | 2:1.10.1-2.module+el8.10.0+24482+e50f4e4f |
| [buildah](https://patchblox.com/security/data/product/linux/buildah.md) | RHEL 8 | 2:1.33.14-4.module+el8.10.0+24482+e50f4e4f |
| [buildah-tests](https://patchblox.com/security/data/product/linux/buildah-tests.md) | RHEL 8 | 2:1.33.14-4.module+el8.10.0+24482+e50f4e4f |
| [cockpit-podman](https://patchblox.com/security/data/product/linux/cockpit-podman.md) | RHEL 8 | 0:84.1-1.module+el8.10.0+24482+e50f4e4f |
| [conmon](https://patchblox.com/security/data/product/linux/conmon.md) | RHEL 8 | 3:2.1.10-1.module+el8.10.0+24482+e50f4e4f |
| [container-selinux](https://patchblox.com/security/data/product/linux/container-selinux.md) | RHEL 8 | 2:2.229.0-3.module+el8.10.0+24482+e50f4e4f |
| [containernetworking-plugins](https://patchblox.com/security/data/product/linux/containernetworking-plugins.md) | RHEL 8 | 1:1.4.0-8.module+el8.10.0+24482+e50f4e4f |
| [containers-common](https://patchblox.com/security/data/product/linux/containers-common.md) | RHEL 8 | 2:1-82.module+el8.10.0+24482+e50f4e4f |
| [crit](https://patchblox.com/security/data/product/linux/crit.md) | RHEL 8 | 0:3.18-5.module+el8.10.0+24482+e50f4e4f |
| [criu](https://patchblox.com/security/data/product/linux/criu.md) | RHEL 8 | 0:3.18-5.module+el8.10.0+24482+e50f4e4f |
| [criu-devel](https://patchblox.com/security/data/product/linux/criu-devel.md) | RHEL 8 | 0:3.18-5.module+el8.10.0+24482+e50f4e4f |
| [criu-libs](https://patchblox.com/security/data/product/linux/criu-libs.md) | RHEL 8 | 0:3.18-5.module+el8.10.0+24482+e50f4e4f |
| [crun](https://patchblox.com/security/data/product/linux/crun.md) | RHEL 8 | 0:1.14.3-2.module+el8.10.0+24482+e50f4e4f |
| [fuse-overlayfs](https://patchblox.com/security/data/product/linux/fuse-overlayfs.md) | RHEL 8 | 0:1.13-1.module+el8.10.0+24482+e50f4e4f |
| [libslirp](https://patchblox.com/security/data/product/linux/libslirp.md) | RHEL 8 | 0:4.4.0-2.module+el8.10.0+24482+e50f4e4f |
| [libslirp-devel](https://patchblox.com/security/data/product/linux/libslirp-devel.md) | RHEL 8 | 0:4.4.0-2.module+el8.10.0+24482+e50f4e4f |
| [netavark](https://patchblox.com/security/data/product/linux/netavark.md) | RHEL 8 | 2:1.10.3-1.module+el8.10.0+24482+e50f4e4f |
| [oci-seccomp-bpf-hook](https://patchblox.com/security/data/product/linux/oci-seccomp-bpf-hook.md) | RHEL 8 | 0:1.2.10-1.module+el8.10.0+24482+e50f4e4f |
| [podman](https://patchblox.com/security/data/product/linux/podman.md) | RHEL 8 | 4:4.9.4-32.module+el8.10.0+24482+e50f4e4f |
| [podman-catatonit](https://patchblox.com/security/data/product/linux/podman-catatonit.md) | RHEL 8 | 4:4.9.4-32.module+el8.10.0+24482+e50f4e4f |
| [podman-docker](https://patchblox.com/security/data/product/linux/podman-docker.md) | RHEL 8 | 4:4.9.4-32.module+el8.10.0+24482+e50f4e4f |
| [podman-gvproxy](https://patchblox.com/security/data/product/linux/podman-gvproxy.md) | RHEL 8 | 4:4.9.4-32.module+el8.10.0+24482+e50f4e4f |
| [podman-plugins](https://patchblox.com/security/data/product/linux/podman-plugins.md) | RHEL 8 | 4:4.9.4-32.module+el8.10.0+24482+e50f4e4f |
| [podman-remote](https://patchblox.com/security/data/product/linux/podman-remote.md) | RHEL 8 | 4:4.9.4-32.module+el8.10.0+24482+e50f4e4f |
| [podman-tests](https://patchblox.com/security/data/product/linux/podman-tests.md) | RHEL 8 | 4:4.9.4-32.module+el8.10.0+24482+e50f4e4f |
| [python3-criu](https://patchblox.com/security/data/product/linux/python3-criu.md) | RHEL 8 | 0:3.18-5.module+el8.10.0+24482+e50f4e4f |
| [python3-podman](https://patchblox.com/security/data/product/linux/python3-podman.md) | RHEL 8 | 0:4.9.0-3.module+el8.10.0+24482+e50f4e4f |
| [runc](https://patchblox.com/security/data/product/linux/runc.md) | RHEL 8 | 4:1.2.9-4.module+el8.10.0+24482+e50f4e4f |
| [skopeo](https://patchblox.com/security/data/product/linux/skopeo.md) | RHEL 8 | 2:1.14.6-2.module+el8.10.0+24482+e50f4e4f |
| [skopeo-tests](https://patchblox.com/security/data/product/linux/skopeo-tests.md) | RHEL 8 | 2:1.14.6-2.module+el8.10.0+24482+e50f4e4f |
| [slirp4netns](https://patchblox.com/security/data/product/linux/slirp4netns.md) | RHEL 8 | 0:1.2.3-1.module+el8.10.0+24482+e50f4e4f |
| [toolbox](https://patchblox.com/security/data/product/linux/toolbox.md) | RHEL 8 | 0:0.0.99.5.1-1.module+el8.10.0+24482+e50f4e4f |
| [toolbox-tests](https://patchblox.com/security/data/product/linux/toolbox-tests.md) | RHEL 8 | 0:0.0.99.5.1-1.module+el8.10.0+24482+e50f4e4f |
| [udica](https://patchblox.com/security/data/product/linux/udica.md) | RHEL 8 | 0:0.2.6-21.module+el8.10.0+24482+e50f4e4f |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-42508](https://patchblox.com/security/data/cve/CVE-2026-42508.md) | High | Invoking  auth bypass via unenforced @revoked status in golang.org/x/crypto/ssh/knownhosts | 9.1 | 0.0691 |  |
| [CVE-2026-39830](https://patchblox.com/security/data/cve/CVE-2026-39830.md) | High | Invoking  client can cause server deadlock on unexpected responses in golang.org/x/crypto/ssh | 9.1 | 0.0068 |  |
| [CVE-2026-39832](https://patchblox.com/security/data/cve/CVE-2026-39832.md) | High | Invoking  agent constraints dropped when forwarding keys in golang.org/x/crypto/ssh/agent | 9.1 | 0.0068 |  |
| [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-2026-39829](https://patchblox.com/security/data/cve/CVE-2026-39829.md) | High | Invoking  pathological RSA/DSA parameters may cause DoS in golang.org/x/crypto/ssh | 8.7 | 0.0047 |  |

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Data as of 2026-11-07T12:40:37Z 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
