High · published July 15, 2026
When an HTTP/2 profile is configured on a virtual server, undisclosed requests can cause an increase in memory resource utilization.
Impact:
System performance can degrade until the TMM process is either forced to restart or is manually restarted. This vulnerability allows a remote, unauthenticated attacker to cause a degradation of service that can lead to a denial-of-service (DoS) on the BIG-IP system. There is no control plane exposure; this is a data plane issue only.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
| Product | Versions | Fixed in |
|---|---|---|
| f5/big-ip_next_cloud-native_network_functions | ≥ 1.1.0, < 1.4.3 | 1.4.3 |
| f5/big-ip_next_cloud-native_network_functions | ≥ 2.0.0, < 2.2.3 | 2.2.3 |
| f5/big-ip_next_cloud-native_network_functions | all versions | — |
| f5/big-ip_next_for_kubernetes | ≥ 2.0.0, < 2.2.3 | 2.2.3 |
| f5/big-ip_next_for_kubernetes | all versions | — |
| f5/big-ip_next_service_proxy_for_kubernetes | ≥ 1.7.0, < 1.7.18 | 1.7.18 |
| f5/big-ip_next_service_proxy_for_kubernetes | ≥ 1.8.0, ≤ 1.9.2 | — |
| f5/big-ip_next_service_proxy_for_kubernetes | ≥ 2.0.0, ≤ 2.0.3 | — |