Missing Authentication in Esri Portal for ArcGIS Affects Multiple Platforms
CVE-2026-13019

9.8CRITICAL

Key Information:

Vendor

Esri

Status
Portal For Arcgis
Vendor
CVE Published:
7 July 2026

What is CVE-2026-13019?

A security flaw in Esri Portal for ArcGIS versions 12.1 and earlier across multiple environments, including Windows, Linux, and Kubernetes, enables remote attackers to exploit a missing authentication mechanism. This vulnerability allows unauthorized individuals to access sensitive unprotected APIs, which can lead to further security breaches and data exposure.

Affected Version(s)

Portal for ArcGIS 0 < 12.1

References

https://www.esri.com/arcgis-blog/products/trust-arcgis/ad...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.