RHSA-2026:60304 — Security Advisory

An update for golang is now available for Red Hat Enterprise Linux 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.

The golang packages provide the Go programming language compiler.

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)

• 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)

Bug Fix(es) and Enhancement(s):

• Go 1.26 -- maxThreads limit hit in CGO threads blocked on RAND_bytes in FIPS mode (JIRA:RHEL-215845)

• Update Go to version 1.26.7+1 [rhel-9.8.z] (JIRA:RHEL-246425)

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.