UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K/A

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)     July 15, 2026

Citigroup Commercial Mortgage Trust 2026-MFAM1

(Exact name of issuing entity)

(Central Index Key number of issuing entity: 0002143199)

Citigroup Commercial Mortgage Securities Inc.

(Exact name of the depositor as specified in its charter)

(Central Index Key number of depositor: 0001258361)

Citi Real Estate Funding Inc.

(Central Index Key number: 0001701238)

(Exact name of sponsors as specified in their charters)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

[  ]  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

[  ]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

[  ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

[  ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Explanatory Note

This Form 8-K/A amends the Current Report on Form 8-K, with a reporting date of July 15, 2026 (the “July 15, 2026 Form 8-K”), filed with the Securities and Exchange Commission (the “Commission”) on July 17, 2026 under SEC Accession No. 0001539497-26-001974, with respect to the Citigroup Commercial Mortgage Trust 2026-MFAM1, Commercial Mortgage Pass-Through Certificates, Series 2026-MFAM1 (the “Certificates”), as and to the extent described below. The purpose of this amendment is to: (a) replace the version of the Pooling and Servicing Agreement previously filed as Exhibit 4.1 to the July 15, 2026 Form 8-K with the updated version of the Pooling and Servicing Agreement attached to this Form 8-K/A as Exhibit 4.1, which contains (i) common codes and pass-through rate information on the forms of Certificates for certain classes of the Certificates, and (ii) other corrective, clerical and/or minor revisions to the previously filed version. Effective upon the filing of this Form 8-K/A, Exhibit 4.1 of the July 15, 2026 Form 8-K is replaced and superseded in its entirety by Exhibit 4.1 to this Form 8-K/A. Capitalized terms used but not defined herein shall have the meanings assigned to them in the July 15, 2026 Form 8-K.

(d)         Exhibits

Pursuant to the requirements of the Securities Exchange Act of 1934, the depositor has caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

ATTACHMENTS / EXHIBITS

POOLING AND SERVICING AGREEMENT, DATED AS OF JULY 1, 2026