What is CVE-2026-9182?

CVE-2026-9182 is a critical-severity vulnerability in Esri Arcgis Server, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-07-06.

How severe is CVE-2026-9182?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Esri Arcgis Server

CVE-2026-9182

Esri ArcGIS Server contains an unrestricted file upload vulnerability. An unauthenticated attacker could exploit this issue by uploading a crafted file to the affected endpoint. Successful exploitation could allow arbitrary file upload, potentially allowing for other attacks. This issue impacts all versions of ArcGIS Server on Windows and Linux 12.0 and prior. This issue does not impact ArcGIS Enterprise for Kubernetes.

Vulnerability class: Unrestricted File Upload

EPSS: 0.004 (28.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

psirt@esri.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-9182?: CVE-2026-9182 is a critical-severity vulnerability in Esri Arcgis Server, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-07-06.
How severe is CVE-2026-9182?: Critical severity. CVSS v3 base score is 9.8 out of 10.