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7.5 High

CVE-2026-21728 Tempo queries with large limits can cause large memory allocations which can impact the availability of the service,…

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). Alternatively, automatically restart the service.

Affected products and versions

Product Affected versions Fixed in
Tempo 2.10 2.10.0 → 2.10.1 No fix stated
Tempo 2.9 2.9.0 → 2.9.1 No fix stated
Tempo 1.3 1.3.0 → 2.8.3 No fix stated
Multicluster Global Hub 1.3.4 1779212259 earliest → < 1779212259 1779212259
Multicluster Global Hub 1.4.5 1779579439 earliest → < 1779579439 1779579439
Multicluster Global Hub 1.5.4 1778867753 earliest → < 1778867753 1778867753
Multicluster Global Hub 1.6.2 1780167118 earliest → < 1780167118 1780167118
Multicluster Global Hub 1.7.1 1779925273 earliest → < 1779925273 1779925273
Red Hat Ceph Storage 5 Versions not published
Show the 22 other branches
Product Affected versions Fixed in
Red Hat Ceph Storage 6 Versions not published
Red Hat Ceph Storage 9 Versions not published
Red Hat OpenShift distributed tracing 3 Versions not published
Logging Subsystem for Red Hat OpenShift Versions not published
Multicluster Global Hub Versions not published
Red Hat Advanced Cluster Management for Kubernetes 2 Versions not published
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 9 Versions not published
Enterprise Traces (GET) 1.0 1.0.0 → 2.8.7 No fix stated
Red Hat multicluster global hub 1.4.3 1779579439 earliest → < 1779579439 1779579439
Multicluster Global Hub 1.5.6 1778867753 earliest → < 1778867753 1778867753
Multicluster Global Hub 1.7.0 1779925273 earliest → < 1779925273 1779925273
Multicluster Global Hub 1.6.4 1780167118 earliest → < 1780167118 1780167118
Multicluster Global Hub 1.7.2 1779925273 earliest → < 1779925273 1779925273
Red Hat multicluster global hub 1.5.0 1778867753 earliest → < 1778867753 1778867753
Red Hat multicluster global hub 1.4.4 1779579439 earliest → < 1779579439 1779579439
Red Hat multicluster global hub 1.6.0 1780167118 earliest → < 1780167118 1780167118
Multicluster Global Hub 1.5.7 1778867753 earliest → < 1778867753 1778867753
Multicluster Global Hub 1.6.5 1780167118 earliest → < 1780167118 1780167118
Red Hat multicluster global hub 1.4.2 1779579439 earliest → < 1779579439 1779579439
Red Hat multicluster global hub 1.5.1 1778867753 earliest → < 1778867753 1778867753
Red Hat multicluster global hub 1.5.3 1778867753 earliest → < 1778867753 1778867753

References

Timeline

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