RHSA-2026:98479HighCVSS 8.1

Red Hat Security Advisory: grafana-pcp security update

Published
November 11, 2026
Last Modified
November 14, 2026

🔗 CVE IDs covered (8)

CVE-2026-56858 →CVE-2026-56860 →CVE-2026-56862 →CVE-2026-78669 →CVE-2026-97031 →CVE-2026-111943 →CVE-2026-33818 →CVE-2026-56853 →

📋 Description

CVE-2026-33818 — encoding/asn1: golang: Go encoding/asn1: Denial of Service via excessive recursion in Unmarshal CVE-2026-56853 — net/http: golang: Go net/http: Unencrypted HTTP/2 connections vulnerable to Denial of Service CVE-2026-56858 — html/template: golang: Go html/template: Cross-Site Scripting via pathological input CVE-2026-56860 — net/url: golang: golang net/url: Denial of Service from quadratic complexity in path resolution CVE-2026-56862 — crypto/tls: golang: Golang crypto/tls: Denial of Service via indefinite KeyUpdate messages CVE-2026-78669 — net/http: net/http/internal/http2: golang.org/x/net/http2: net/http: Denial of Service via excessive HTTP/2 SETTINGS frames CVE-2026-97031 — crypto/tls: golang: crypto/tls: Denial of Service via multiple ECH outer extension references CVE-2026-111943 — crypto/x509: golang: crypto/x509: Man-in-the-middle attacks via untrusted intermediate certificates

🎯 Affected products14

  • Red Hat Enterprise Linux AppStream (v. 9)
  • grafana-pcp-0:5.1.1-17.el9_9.3.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • grafana-pcp-0:5.1.1-17.el9_9.3.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • grafana-pcp-0:5.1.1-17.el9_9.3.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • grafana-pcp-0:5.1.1-17.el9_9.3.src as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • grafana-pcp-0:5.1.1-17.el9_9.3.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • grafana-pcp-debuginfo-0:5.1.1-17.el9_9.3.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • grafana-pcp-debuginfo-0:5.1.1-17.el9_9.3.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • grafana-pcp-debuginfo-0:5.1.1-17.el9_9.3.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • grafana-pcp-debuginfo-0:5.1.1-17.el9_9.3.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • grafana-pcp-debugsource-0:5.1.1-17.el9_9.3.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • grafana-pcp-debugsource-0:5.1.1-17.el9_9.3.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • grafana-pcp-debugsource-0:5.1.1-17.el9_9.3.s390x as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • grafana-pcp-debugsource-0:5.1.1-17.el9_9.3.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9)

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability. Workaround: In case you consume HTTP2, upgrade to a patched version of the http module. Verify: ``` go version go list -m golang.org/x/net govulncheck ./... ``` Workaround: See the security bulletin for a detailed mitigation procedure.

🔗 References (11)