Detections
Analytics
CVE-2026-21728
high
Description
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).
References
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-21728.json
https://grafana.com/security/security-advisories/cve-2026-21728
https://bugzilla.redhat.com/show_bug.cgi?id=2461395
https://access.redhat.com/security/cve/CVE-2026-21728
https://access.redhat.com/errata/RHSA-2026:24503
https://access.redhat.com/errata/RHSA-2026:23345
https://access.redhat.com/errata/RHSA-2026:22423