Detections
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AlmaLinux 8 : container-tools:rhel8 (ALSA-2026:63163)
medium Nessus Plugin ID 351449
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-2026:63163 advisory.* net/mail: golang: net/mail: Denial of Service via pathological email address parsing (CVE-2026-42499)
* encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal (CVE-2026-33818)
* net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution (CVE-2026-56860)
* net/[http:](http:) golang: Go net/[http:](http:) Unencrypted HTTP/2 connections vulnerable to Denial of Service (CVE-2026-56853)
* html/template: golang: Go html/template: Cross-Site Scripting via pathological input (CVE-2026-56858)
* crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages (CVE-2026-56862)
* encoding/xml: golang: Go: Denial of Service via XML decoding recursion depth issue (CVE-2026-56859)
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
Plugin Details
Severity: Medium
ID: 351449
File Name: alma_linux_ALSA-2026-63163.nasl
Version: 1.1
Type: Local
Family: Alma Linux Local Security Checks
Published: 9/30/2026
Updated: 9/30/2026
Supported Sensors: Continuous Assessment, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5
Percentile: 93.28
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-2026-56858
CVSS v3
Risk Factor: Medium
Base Score: 6.1
Temporal Score: 5.3
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:alma:linux:8, cpe:/o:alma:linux:8::appstream, cpe:/o:alma:linux:8::baseos, cpe:/o:alma:linux:8::highavailability, cpe:/o:alma:linux:8::nfv, cpe:/o:alma:linux:8::powertools, cpe:/o:alma:linux:8::realtime, cpe:/o:alma:linux:8::resilientstorage, cpe:/o:alma:linux:8::sap, cpe:/o:alma:linux:8::sap_hana, cpe:/o:alma:linux:8::supplementary, p-cpe:/a:alma:linux:aardvark-dns, p-cpe:/a:alma:linux:buildah-tests, p-cpe:/a:alma:linux:buildah, p-cpe:/a:alma:linux:cockpit-podman, p-cpe:/a:alma:linux:conmon, p-cpe:/a:alma:linux:container-selinux, p-cpe:/a:alma:linux:containernetworking-plugins, p-cpe:/a:alma:linux:containers-common, p-cpe:/a:alma:linux:crit, p-cpe:/a:alma:linux:criu-devel, p-cpe:/a:alma:linux:criu-libs, p-cpe:/a:alma:linux:criu, p-cpe:/a:alma:linux:crun, p-cpe:/a:alma:linux:fuse-overlayfs, p-cpe:/a:alma:linux:libslirp-devel, p-cpe:/a:alma:linux:libslirp, p-cpe:/a:alma:linux:netavark, p-cpe:/a:alma:linux:oci-seccomp-bpf-hook, p-cpe:/a:alma:linux:podman-catatonit, p-cpe:/a:alma:linux:podman-docker, p-cpe:/a:alma:linux:podman-gvproxy, p-cpe:/a:alma:linux:podman-plugins, p-cpe:/a:alma:linux:podman-remote, p-cpe:/a:alma:linux:podman-tests, p-cpe:/a:alma:linux:podman, p-cpe:/a:alma:linux:python3-criu, p-cpe:/a:alma:linux:python3-podman, p-cpe:/a:alma:linux:runc, p-cpe:/a:alma:linux:skopeo-tests, p-cpe:/a:alma:linux:skopeo, p-cpe:/a:alma:linux:slirp4netns, p-cpe:/a:alma:linux:toolbox-tests, p-cpe:/a:alma:linux:toolbox, p-cpe:/a:alma:linux:udica
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: 9/3/2026
Vulnerability Publication Date: 5/7/2026
Reference Information
CVE: CVE-2026-33818, CVE-2026-42499, CVE-2026-56853, CVE-2026-56858, CVE-2026-56859, CVE-2026-56860, CVE-2026-56862