Bug ID 1629793: WebSocket messages do not arrive server when using waf policy

Last Modified: Oct 19, 2025

Affected Product(s):
BIG_IP_NEXT(VE/HW) TMOS(all modules)

Fixed In:
20.3.0

Opened: Aug 20, 2024

Severity: 3-Major

Symptoms

Websocket messages are stalled in bigip-next and do not arrive to the server, when WAF policy is attached to the application.

Impact

Handshake seems successful, but websocket messages do not arrive to server.

Conditions

-- WAF policy is attached to the application. -- Websocket traffic is sent.

Workaround

None.

Fix Information

Bypass websocket messages by WAF when there is no websocket configuration.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips