RHSA-2026:69107 — Security Advisory
Red Hat Security Advisory: rhc security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · September 21, 2026
Updated · November 4, 2026
Topic
An update for rhc is now available for Red Hat Enterprise Linux 9.6 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
rhc is a client tool and daemon that connects the system to Red Hat hosted services enabling system and subscription management.
Security Fix(es):
-
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)
-
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)
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.