Bug ID 1975941: Alternate_response_content length greater than 51200 in ACCOUNT_ALTERNATE_RESPONSE_FILE causing ASM restart loop

Last Modified: Oct 15, 2025

Affected Product(s):
BIG-IP ASM(all modules)

Known Affected Versions:
17.1.2.1, 17.1.2.2

Fixed In:
17.5.1.3, 17.1.3

Opened: Jul 03, 2025

Severity: 3-Major

Symptoms

Bd goes into a restart loop

Impact

Bd constantly restarts. Traffic disrupted while bd restarts.

Conditions

Custom response body configured with tokens present and length becomes greater than 51200 after replacing tokens with their respective values.

Workaround

Reduce the size of response body less than 51200

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips