Allocation of Resources Without Limits or Throttling in F5 Networks products - CVE-2026-59762
Published: July 16, 2026
Vulnerability identifier: #VU137848
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-59762
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to allocation of resources without limits or throttling in TMM when processing undisclosed HTTP/2 requests on a virtual server with an HTTP/2 profile configured. A remote attacker can send crafted requests to cause a denial of service.
There is no control plane exposure; this issue affects the data plane only.
Affected software
BIG-IP Next CNF
BIG-IP Next SPK
BIG-IP Next for Kubernetes
BIG-IP
BIG-IP Next SPK
BIG-IP Next for Kubernetes
BIG-IP
How to mitigate CVE-2026-59762
Install security update from vendor's website.
BIG-IP Next CNF - addressed in versions 1.4.3, 2.0.0, 2.2.3, 2.3.2
BIG-IP Next SPK - update to 1.7.18
BIG-IP Next for Kubernetes - addressed in versions 2.2.3, 2.3.2
BIG-IP - addressed in versions 17.1.3.4, 17.5.1.8, 21.0.0.3, 21.1.0.1
BIG-IP Next SPK - update to 1.7.18
BIG-IP Next for Kubernetes - addressed in versions 2.2.3, 2.3.2
BIG-IP - addressed in versions 17.1.3.4, 17.5.1.8, 21.0.0.3, 21.1.0.1