RHSA-2026:86196 — Security Advisory
Red Hat Security Advisory: golang security, bug fix, and enhancement update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · October 21, 2026
Updated · November 4, 2026
Topic
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.
Description
The golang packages provide the Go programming language compiler.
Security Fix(es):
-
net/http: golang: golang: Denial of Service via crafted HTTP Range headers (CVE-2026-78667)
-
crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references (CVE-2026-97031)
-
net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames (CVE-2026-78669)
-
golang: crypto/x509: Go: crypto/x509: mitigation for security concerns with a specific Certificate Authority (CVE-2026-111943)
Bug Fix(es) and Enhancement(s):
- Update Go to version 1.26.10+1 [rhel-9.8.z] (JIRA:RHEL-287192)
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.