Bug ID 2219833: F5OS image import fails with 'Signature verification failed' error

Last Modified: Aug 07, 2026

Affected Product(s):
F5OS F5OS, F5OS-A, F5OS-C(all modules)

Fixed In:
F5OS-C 1.8.2-HR1, F5OS-A 1.8.4, F5OS v2.0.0

Opened: Feb 04, 2026

Severity: 1-Blocking

Symptoms

When F5OS ISO certificates were rotated for the first time in October 2025, certificate validity was set to 6 months. Consequently, importing affected images fails after expiration. This issue is limited to image import.

Impact

F5OS ISO images published on or before October 2025 cannot be imported.

Conditions

Occurs when attempting to import an F5OS ISO image published on or before October 2025.

Workaround

Use F5OS ISO images published after October 2025 for import.

Fix Information

F5OS ISO certificate expiration period has been extended to 39 months.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips