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OpenAdvisories
High ALSA-2026:54243 2 CVEs

Important: grafana security update

Published Aug 12, 2026 · Updated Oct 29, 2026

Summary

Grafana is an open source, feature rich metrics dashboard and graph editor for Graphite, InfluxDB & OpenTSDB.

Security Fix(es):

* grafana: Grafana: Privilege escalation via dashboard overwrite (CVE-2026-33377)
* grafana: Grafana: Denial of Service due to excessive memory allocation via large JSON payloads (CVE-2026-42127)

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 2

ReleasePackageFixed in
AlmaLinux · 8 grafana 9.2.10-32.el8_10.1
AlmaLinux · 8 grafana-selinux 9.2.10-32.el8_10.1

Vulnerabilities 2

  • High 7.5

    Pre-authentication denial of service in the public dashboard query endpoint

    The public dashboard query endpoint does not limit request body size before processing, allowing unauthenticated attackers to trigger excessive memory allocation by sending arbitrarily large JSON payloads. This can lead to denial of service through memory exh…

  • High 7.1

    Dashboard Import Overwrites ACL — Editor Privilege Escalation to Dashboard Admin

    An Editor can overwrite a dashboard not owned by them to acquire admin on that specific dashboard. The user must have write access to the dashboard to escalate privilege.

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-33377
  • report
    https://access.redhat.com/security/cve/CVE-2026-42127
  • report
    https://bugzilla.redhat.com/2477246
  • advisory
    https://errata.almalinux.org/8/ALSA-2026-54243.html