Allocation of Resources Without Limits or Throttling The advisory has been revoked - it doesn't affect any version of package grafana (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS9-GRAFANA-16353677
- published3 May 2026
- disclosed24 Apr 2026
Introduced: 24 Apr 2026
CVE-2026-21728 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream grafana package and not the grafana package as distributed by Centos.
Tempo queries with large limits can cause large memory allocations which can impact the availability of the service, depending on its deployment strategy.
Mitigation can be done by setting max_result_limit in the search config, e.g. to 262144 (2^18). Alternatively, automatically restart the service.
References
- https://access.redhat.com/security/cve/CVE-2026-21728
- https://grafana.com/security/security-advisories/cve-2026-21728
- https://access.redhat.com/errata/RHSA-2026:21769
- https://access.redhat.com/errata/RHSA-2026:22347
- https://access.redhat.com/errata/RHSA-2026:22423
- https://access.redhat.com/errata/RHSA-2026:23345
- https://access.redhat.com/errata/RHSA-2026:24503
- https://bugzilla.redhat.com/show_bug.cgi?id=2461395
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-21728.json