CVE-2026-13019

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.

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CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0041

Probability of exploitation

0.33%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-640 CWE-640

Affected Products

Vendor	Product	Versions
esri	portal_for_arcgis	< 12.1
kubernetes	kubernetes	All
linux	linux_kernel	All
microsoft	windows	All

References

Advisories & Patches

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

Frequently Asked Questions

What is CVE-2026-13019? +

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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-13019? +

CVE-2026-13019 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0041, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-13019? +

CVE-2026-13019 affects products from esri, kubernetes, linux, microsoft, specifically: kubernetes, linux_kernel, portal_for_arcgis, windows. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-13019? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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