PUBLISHER UPDATE · RHSA-2026-54441
Red Hat Security Advisory: Red Hat Lightspeed (formerly Insights) for Runtimes security update
Scope: Red Hat Lightspeed (formerly Insights) for Runtimes. This update record adds version, fix and known-issue context. Its publication date is not a lifecycle boundary.
An update is now available for Red Hat Lightspeed (formerly Insights) for Runtimes on RHEL 9. 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. An update is now available for Red Hat Lightspeed (formerly Insights) for Runtimes on RHEL 9. Security fix(es): * golang.org/x/net/html: Cross-Site Scripting via unexpected HTML tree rendering (CVE-2026-42502) * golang.org/x/net/html: Cross-Site Scripting via HTML parsing bypass (CVE-2026-27136) * golang.org/x/net/html: Arbitrary code execution via Cross-Site Scripting (CVE-2026-25681) * golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries (CVE-2026-27145) * Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811) * golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing (CVE-2026-39821) 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.
Not stated. The verified publisher record does not contain a known-issues statement.
Apply the Red Hat updates listed in the official advisory.
Checked 30 Sep 2026. BlackTree preserves the last verified facts if a later source check is temporarily unavailable.
Open the official publisher source