This update addresses multiple vulnerabilities in the grafana-pcp plugin for Red Hat Enterprise Linux 9.4, stemming from underlying Go components, including a critical TLS session resumption flaw (CVE-2025-68121, CVSS 10.0) and several high-severity denial-of-service issues in crypto/x509 and crypto/tls. The affected Go versions are below 1.25.9 or between 1.26.0 and 1.26.2, as detailed in the NVD data. The fix is provided by rebuilding grafana-pcp with Go 1.25.9, which is included in the Red Hat package update for the specified RHEL channels.
Red Hat Product Errata RHSA-2026:47716 - Security Advisory Issued: 2026-07-29 Updated: 2026-07-29 RHSA-2026:47716 - Security Advisory Overview Updated Packages Synopsis Important: grafana-pcp security, bug fix, and enhancement update Type/Severity Security Advisory: Important Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for grafana-pcp is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. 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 Grafana plugin for Performance Co-Pilot includes datasources for scalable time series from pmseries and Redis, live PCP metrics and bpftrace scripts from pmdabpftrace, as well as several dashboards. Security Fix(es): crypto/tls: Unexpected session resumption in crypto/tls (CVE-2025-68121) crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation (CVE-2026-32281) golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root (CVE-2026-32282) crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283) crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) Bug Fix(es) and Enhancement(s): Rebuild grafana-pcp with golang 1.25.9 [rhel-9.4.z] (JIRA:RHEL-191673) 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. Solution For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Affected Products Red Hat Enterprise Linux Server - AUS 9.4 x86_64 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 ppc64le Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 x86_64 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 aarch64 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 s390x Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.4 x86_64 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.4 aarch64 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.4 ppc64le Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.4 s390x Fixes BZ - 2437111 - CVE-2025-68121 crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption BZ - 2456333 - CVE-2026-32281 crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation BZ - 2456336 - CVE-2026-32282 golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root BZ - 2456338 - CVE-2026-32283 crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages BZ - 2456339 - CVE-2026-32280 crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building RHEL-191673 - Rebuild grafana-pcp with golang 1.25.9 [rhel-9.4.z] CVEs CVE-2025-68121 CVE-2026-32280 CVE-2026-32281 CVE-2026-32282 CVE-2026-32283 References https://access.redhat.com/security/updates/classification/#important Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux Server - AUS 9.4 SRPM grafana-pcp-5.1.1-8.el9_4.src.rpm SHA-256: 38097e672a3d2b86208e3fb2e9aab2e41429359c1a81a834ae4f4e76aecf12ee x86_64 grafana-pcp-5.1.1-8.el9_4.x86_64.rpm SHA-256: a39117eb7ad0df8edcc4693f0890160f9a0a06895ee2971699b881477ebfad72 grafana-pcp-debuginfo-5.1.1-8.el9_4.x86_64.rpm SHA-256: 3a3aae179c8c98d128a2052f027d109aaa8481a8ee82cc70360a30dcbd6453d1 grafana-pcp-debugsource-5.1.1-8.el9_4.x86_64.rpm SHA-256: af6e98b1657a8ec1172f33d3ad41b29a3559b98909ea47fe8bf945c6264dd200 Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.4 SRPM grafana-pcp-5.1.1-8.el9_4.src.rpm SHA-256: 38097e672a3d2b86208e3fb2e9aab2e41429359c1a81a834ae4f4e76aecf12ee ppc64le grafana-pcp-5.1.1-8.el9_4.ppc64le.rpm SHA-256: 1a7cbb44e3bfe635edb2ffdb0f3c182bd84541c2b55ed6ee78c45579cc4ebdb5 grafana-pcp-debuginfo-5.1.1-8.el9_4.ppc64le.rpm SHA-256: 5e58053683c51de4f853452cacdba495f8b46bbd67f13f7301f6069f911e822b grafana-pcp-debugsource-5.1.1-8.el9_4.ppc64le.rpm SHA-256: e89e2a0e8ac67ae8b7cf80ea0351f3792658c10138b4535301b3a1a7830b14a9 Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.4 SRPM grafana-pcp-5.1.1-8.el9_4.src.rpm SHA-256: 38097e672a3d2b86208e3fb2e9aab2e41429359c1a81a834ae4f4e76aecf12ee x86_64 grafana-pcp-5.1.1-8.el9_4.x86_64.rpm SHA-256: a39117eb7ad0df8edcc4693f0890160f9a0a06895ee2971699b881477ebfad72 grafana-pcp-debuginfo-5.1.1-8.el9_4.x86_64.rpm SHA-256: 3a3aae179c8c98d128a2052f027d109aaa8481a8ee82cc70360a30dcbd6453d1 grafana-pcp-debugsource-5.1.1-8.el9_4.x86_64.rpm SHA-256: af6e98b1657a8ec1172f33d3ad41b29a3559b98909ea47fe8bf945c6264dd200 Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.4 SRPM grafana-pcp-5.1.1-8.el9_4.src.rpm SHA-256: 38097e672a3d2b86208e3fb2e9aab2e41429359c1a81a834ae4f4e76aecf12ee aarch64 grafana-pcp-5.1.1-8.el9_4.aarch64.rpm SHA-256: c28641bd26f7ce7450808950f19e618e0ba6a76e50c3a35652eef3bf2f4eb170 grafana-pcp-debuginfo-5.1.1-8.el9_4.aarch64.rpm SHA-256: e3d7f0cb2fc20312342ec2bec82c0597ac987099e2be73c90f7a2b3d44abcc7b grafana-pcp-debugsource-5.1.1-8.el9_4.aarch64.rpm SHA-256: a306c169a89dd2efe26d6e455811c63545a41443073df44931476ba3a513b0e4 Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.4 SRPM grafana-pcp-5.1.1-8.el9_4.src.rpm SHA-256: 38097e672a3d2b86208e3fb2e9aab2e41429359c1a81a834ae4f4e76aecf12ee s390x grafana-pcp-5.1.1-8.el9_4.s390x.rpm SHA-256: 575117281e6b108ecbf3904f93599599841911d71dba19fbdd8f543d3d5dfb09 grafana-pcp-debuginfo-5.1.1-8.el9_4.s390x.rpm SHA-256: 06b2bcef3387149e6dc353273f3f78664e1067d78856b8a0cda7f15bea103da6 grafana-pcp-debugsource-5.1.1-8.el9_4.s390x.rpm SHA-256: e09ccd1ca8ea24be558cbd14afe1e79650b4bd409bddce2cf44049a3f222c8e7 Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.4 SRPM grafana-pcp-5.1.1-8.el9_4.src.rpm SHA-256: 38097e672a3d2b86208e3fb2e9aab2e41429359c1a81a834ae4f4e76aecf12ee x86_64 grafana-pcp-5.1.1-8.el9_4.x86_64.rpm SHA-256: a39117eb7ad0df8edcc4693f0890160f9a0a06895ee2971699b881477ebfad72 grafana-pcp-debuginfo-5.1.1-8.el9_4.x86_64.rpm SHA-256: 3a3aae179c8c98d128a2052f027d109aaa8481a8ee82cc70360a30dcbd6453d1 grafana-pcp-debugsource-5.1.1-8.el9_4.x86_64.rpm SHA-256: af6e98b1657a8ec1172f33d3ad41b29a3559b98909ea47fe8bf945c6264dd200 Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.4 SRPM grafana-pcp-5.1.1-8.el9_4.src.rpm SHA-256: 38097e672a3d2b86208e3fb2e9aab2e41429359c1a81a834ae4f4e76aecf12ee aarch64 grafana-pcp-5.1.1-8.el9_4.aarch64.rpm SHA-256: c28641bd26f7ce7450808950f19e618e0ba6a76e50c3a35652eef3bf2f4eb170 grafana-pcp-debuginfo-5.1.1-8.el9_4.aarch64.rpm SHA-256: e3d7f0cb2fc20312342ec2bec82c0597ac987099e2be73c90f7a2b3d44abcc7b grafana-pcp-debugsource-5.1.1-8.el9_4.aarch64.rpm SHA-256: a306c169a89dd2efe26d6e455811c63545a41443073df44931476ba3a513b0e4 Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.4 SRPM grafana-pcp-5.1.1-8.el9_4.src.rpm SHA-256: 38097e672a3d2b86208e3fb2e9aab2e41429359c1a81a834ae4f4e76aecf12ee ppc64le grafana-pcp-5.1.1-8.el9_4.ppc64le.rpm SHA-256: 1a7cbb44e3bfe635edb2ffdb0f3c182bd84541c2b55ed6ee78c45579cc4ebdb5 grafana-pcp-debuginfo-5.1.1-8.el9_4.ppc64le.rpm SHA-256: 5e58053683c51de4f853452cacdba495f8b46bbd67f13f7301f6069f911e822b grafana-pcp-debugsource-5.1.1-8.el9_4.ppc64le.rpm SHA-256: e89e2a0e8ac67ae8b7cf80ea0351f3792658c10138b4535301b3a1a7830b14a9 Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.4 SRPM grafana-pcp-5.1.1-8.el9_4.src.rpm SHA-256: 38097e672a3d2b86208e3fb2e9aab2e41429359c1a81a834ae4f4e76aecf12ee s390x grafana-pcp-5.1.1-8.el9_4.s390x.rpm SHA-256: 575117281e6b108ecbf3904f93599599841911d71dba19fbdd8f543d3d5dfb09 grafana-pcp-debuginfo-5.1.1-8.el9_4.s390x.rpm SHA-256: 06b2bcef3387149e6dc353273f3f78664e1067d78856b8a0cda7f15bea103da6 grafana-pcp-debugsource-5.1.1-8.el9_4.s390x.rpm SHA-256: e09ccd1ca8ea24be558cbd14afe1e79650b4bd409bddce2cf44049a3f222c8e7 The Red Hat security contact is secalert@redhat.com . More contact details at https://access.redhat.com/security/team/contact/ .