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Grafana can let attackers gain admin rights and cause crashes
published 2 months ago
Summary
The Grafana packages for AlmaLinux can be tricked into giving a user higher privileges or consuming excessive memory, which may lead to a crash. This could allow an attacker to take control of the dashboard or disrupt service. Install the latest Grafana updates from the AlmaLinux repository as soon as possible.
What to do
- Update almalinux grafana to version 9.2.10-32.el8_10.1.
- Update almalinux grafana-selinux to version 9.2.10-32.el8_10.1.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| AlmaLinux:8 | almalinux | grafana |
< 9.2.10-32.el8_10.1 Fix: upgrade to 9.2.10-32.el8_10.1
|
| AlmaLinux:8 | almalinux | grafana-selinux |
< 9.2.10-32.el8_10.1 Fix: upgrade to 9.2.10-32.el8_10.1
|
Original advisory text
Important: grafana security update
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.
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.
References
- https://access.redhat.com/errata/RHSA-2026:54243 Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-33377 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2026-42127 Third Party Advisory
- https://bugzilla.redhat.com/2477246 Third Party Advisory
- https://errata.almalinux.org/8/ALSA-2026-54243.html Vendor Advisory
Timeline
Published12 Aug 2026
Updated30 Sep 2026
First seen30 Sep 2026
Sources
ALSA-2026:54243 · OSV
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