CVE-2026-13019
Critical
Description
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductEsri Portal For Arcgis
PublishedJul 7, 2026
First seenJul 7, 2026
Weakness typeCWE-640CWE-640
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| esri portal_for_arcgis | v ≤ 12.1 | — |
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