AlmaLinux 8 : container-tools:rhel8 (ALSA-2026:35833)

high Nessus Plugin ID 325499

Synopsis

The remote AlmaLinux host is missing one or more security updates.

Description

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:35833 advisory.

* github.com/go-jose/go-jose/v3: github.com/go-jose/go-jose/v4: Go JOSE: Denial of Service via crafted JSON Web Encryption (JWE) object (CVE-2026-34986)
* golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via crafted public key with excessive parameters (CVE-2026-39829)
* golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via resource leak from unsolicited SSH responses (CVE-2026-39830)
* golang.org/x/crypto/ssh/agent: golang.org/x/crypto/ssh/agent: Security bypass due to improper handling of key restrictions (CVE-2026-39832)
* golang.org/x/crypto/ssh/knownhosts: golang: golang.org/x/crypto/ssh/knownhosts: Revocation bypass via unchecked SignatureKey (CVE-2026-42508)

Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2026:35833

https://errata.almalinux.org/8/ALSA-2026-35833.html

Plugin Details

Severity: High

ID: 325499

File Name: alma_linux_ALSA-2026-35833.nasl

Version: 1.1

Type: Local

Published: 7/7/2026

Updated: 7/7/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.33

CVSS v2

Risk Factor: High

Base Score: 9.4

Temporal Score: 7

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-42508

CVSS v3

Risk Factor: High

Base Score: 8.7

Temporal Score: 7.6

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2026-39832

Vulnerability Information

CPE: p-cpe:/a:alma:linux:podman-docker, p-cpe:/a:alma:linux:podman-gvproxy, p-cpe:/a:alma:linux:fuse-overlayfs, p-cpe:/a:alma:linux:crit, p-cpe:/a:alma:linux:cockpit-podman, p-cpe:/a:alma:linux:podman-remote, p-cpe:/a:alma:linux:criu-devel, cpe:/o:alma:linux:8::appstream, p-cpe:/a:alma:linux:python3-criu, p-cpe:/a:alma:linux:containernetworking-plugins, p-cpe:/a:alma:linux:buildah-tests, p-cpe:/a:alma:linux:podman-plugins, p-cpe:/a:alma:linux:podman-catatonit, p-cpe:/a:alma:linux:buildah, p-cpe:/a:alma:linux:containers-common, p-cpe:/a:alma:linux:oci-seccomp-bpf-hook, p-cpe:/a:alma:linux:skopeo-tests, p-cpe:/a:alma:linux:criu, p-cpe:/a:alma:linux:skopeo, p-cpe:/a:alma:linux:conmon, p-cpe:/a:alma:linux:podman, p-cpe:/a:alma:linux:python3-podman, p-cpe:/a:alma:linux:libslirp, p-cpe:/a:alma:linux:runc, cpe:/o:alma:linux:8::nfv, cpe:/o:alma:linux:8::powertools, cpe:/o:alma:linux:8, p-cpe:/a:alma:linux:crun, p-cpe:/a:alma:linux:udica, p-cpe:/a:alma:linux:criu-libs, p-cpe:/a:alma:linux:container-selinux, cpe:/o:alma:linux:8::supplementary, p-cpe:/a:alma:linux:aardvark-dns, p-cpe:/a:alma:linux:libslirp-devel, p-cpe:/a:alma:linux:slirp4netns, cpe:/o:alma:linux:8::sap_hana, cpe:/o:alma:linux:8::realtime, cpe:/o:alma:linux:8::highavailability, cpe:/o:alma:linux:8::resilientstorage, cpe:/o:alma:linux:8::baseos, p-cpe:/a:alma:linux:netavark, p-cpe:/a:alma:linux:podman-tests, p-cpe:/a:alma:linux:toolbox, cpe:/o:alma:linux:8::sap, p-cpe:/a:alma:linux:toolbox-tests

Required KB Items: Host/local_checks_enabled, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 7/6/2026

Vulnerability Publication Date: 4/3/2026

Reference Information

CVE: CVE-2026-34986, CVE-2026-39829, CVE-2026-39830, CVE-2026-39832, CVE-2026-42508

CWE: 1284, 131, 281, 295, 772

IAVB: 2026-B-0120

RHSA: 2026:35833