CVE-2026-13019
Missing Authentication
CVSS Score
9.8
EPSS Score
0.8%
EPSS Percentile
56th
Esri Portal for ArcGIS versions 12.1 and earlier on Windows, Linux and Kubernetes have a missing authentication for critical function vulnerability allows a remote, unauthenticated attacker to access an unprotected API. The following versions are known to be affected: Portal for ArcGIS 12.1 and earlier. Other unsupported versions may also be affected. Esri recommends that users apply the Portal for ArcGIS Security 2026 Update 2 Patch to remediate this vulnerability.
| CWE | CWE-640 |
| Vendor | esri |
| Product | portal for arcgis |
| Published | Jul 7, 2026 |
| Last Updated | Sep 29, 2026 |
Stay Ahead of the Next One
Get instant alerts for esri portal for arcgis
Be the first to know when new critical vulnerabilities affecting esri portal for arcgis are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Esri / Portal for ArcGIS
0 < 12.1