The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:63163 advisory.

    The container-tools module contains tools for working with containers, notably podman, buildah, skopeo,     and runc.

    Security Fix(es):

    * 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: golang: Go net/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)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

Detections

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RHEL 8 : container-tools:rhel8 (RHSA-2026:63163)

medium Nessus Plugin ID 342744

Version 1.1