This bill, titled the Fund CISA Personnel Act of 2026, aims to ensure the continued operation and staffing of the Cybersecurity and Infrastructure Security Agency (CISA) during potential federal government shutdowns in fiscal year 2026. It specifically appropriates funds from the Treasury to cover the pay, allowances, benefits, and other payments for CISA employees if interim or full-year appropriations are not in effect, beginning February 14, 2026. The appropriations are limited to individuals directly affected by the lapse in funding and are not to be used if employees are paid from other sources. All expenditures made under this act will be charged against future applicable appropriations once enacted into law, and payments must adhere to existing requirements and conditions. This temporary funding mechanism will remain in effect until a full appropriation for CISA is enacted, or until September 30, 2026, whichever occurs first, with a retroactive effective date of February 13, 2026.