What’s Vulnerable › Vulnerabilities

CVE-2026-10759: BUG-000171040 Portal for ArcGIS has a security vulnerability

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-13 · updated 2026-10-26
• Weakness: CWE-90

Description

A flaw in Portal for ArcGIS could allow LDAP injection through administrative functionality that constructs Active Directory or LDAP search queries without sufficient input neutralization. An authenticated administrator could supply crafted input that modifies the intended LDAP query and causes unintended directory operations.

Affected products

• Esri Portal for ArcGIS: through 12.1

References

• https://www.esri.com/arcgis-blog/products/trust-arcgis/administration/september-2026-arcgis-security-bulletin

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