RHSA-2026:86203 — Security Advisory
Red Hat Security Advisory: go-toolset:rhel8 security, bug fix, and enhancement update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · October 21, 2026
Updated · November 5, 2026
Topic
An update for the go-toolset:rhel8 module is now available for Red Hat Enterprise Linux 8.
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
Go Toolset provides the Go programming language tools and libraries. Go is alternatively known as golang.
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-8.10.z] (JIRA:RHEL-287193)
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.