September 2026 ArcGIS Security Bulletin
Classification: Critical, Solution: Official Fix, Exploit Maturity: Not Defined, CVSSv3.1: 9.8, CVEs: CVE-2026-69227, CVE-2026-69226, CVE-2026-10759, Summary: The Portal for ArcGIS 2026 Security Update 4 patch has been released and is available here. CVE-2026-69227 :Missing Authentication for Critical Function CVE-2026-69226:3 Incorrect Authorization CVE-2026-10759: Improper Neutralization of Special Elements used in an LDAP Query (‘LDAP Injection’)
EPSS 0.00 CVSS 9.8 CVE-2026-10759 CVE-2026-69226 CVE-2026-69227 FI