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OpenAdvisories
High · 7.5 CVE-2026-42409 EUVD-2026-29999GHSA-qj39-79pv-x52r

BIG-IP HTTP/2 vulnerability

Published May 13, 2026 · Updated May 13, 2026 · Assigned by f5

Description

When an HTTP/2 profile and an iRule containing the HTTP::redirect or HTTP::respond command are configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) process to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Affected products

VendorProductAffectedFixed
F5 BIG-IP 21.0.0 – < 21.0.0.1, 17.5.0 – < 17.5.1.4, 17.1.0 – < 17.1.3.1, 16.1.0 21.0.0.1
F5 BIG-IP Next SPK 2.0.0 – < 2.0.3, 1.7.0 – < 1.7.17 2.0.3
F5 BIG-IP Next CNF 2.0.0 – < 2.0.3, 1.4.0 – < 1.4.1 2.0.3
F5 BIG-IP Next for Kubernetes 2.0.0 – < 2.1.1 2.1.1

Advisories 2

References