Issued at: 2026-10-21
Updated at: 2026-10-21
Advisory content derived from Red Hat RHSA-2026:86203, © Red Hat, Inc., used under CC BY 4.0, with modifications.
Synopsis
Important: go-toolset:rhel8 security, bug fix, and enhancement update
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:Rocky Linux-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.