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OpenAdvisories
High RLSA-2026:98620 1 CVE

Important: grafana-pcp security update

Published Nov 13, 2026 · Updated Nov 13, 2026

Summary

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):

* github.com/klauspost/compress/zstd: klauspost/compress: Denial of Service via crafted zstd compressed input (CVE-2026-116591)

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.

Fixed packages 12

ReleasePackageFixed in
Rocky Linux · 10 grafana-pcp 0:6.1.0-2.el10_3.3
Rocky Linux · 10 grafana-pcp 0:6.1.0-2.el10_3.3
Rocky Linux · 10 grafana-pcp 0:6.1.0-2.el10_3.3
Rocky Linux · 10 grafana-pcp 0:6.1.0-2.el10_3.3
Rocky Linux · 10 grafana-pcp-debuginfo 0:6.1.0-2.el10_3.3
Rocky Linux · 10 grafana-pcp-debuginfo 0:6.1.0-2.el10_3.3
Rocky Linux · 10 grafana-pcp-debuginfo 0:6.1.0-2.el10_3.3
Rocky Linux · 10 grafana-pcp-debuginfo 0:6.1.0-2.el10_3.3
Rocky Linux · 10 grafana-pcp-debugsource 0:6.1.0-2.el10_3.3
Rocky Linux · 10 grafana-pcp-debugsource 0:6.1.0-2.el10_3.3
Rocky Linux · 10 grafana-pcp-debugsource 0:6.1.0-2.el10_3.3
Rocky Linux · 10 grafana-pcp-debugsource 0:6.1.0-2.el10_3.3

Vulnerabilities 1

  • High 8.7

    compress zstd: Panic on two-block frames

    compress provides various compression algorithms. Prior to 1.20.2, the zstd DecodeAll and streaming decoder paths can panic when a crafted two-block frame reaches huff0.ReadTable with an FSE normalized count of 32768 that readNCount stores in int16 as -32768.…

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2561461
  • advisory
    https://access.redhat.com/errata/RHSA-2026:98620