CVE-2026-9182 Unvalidated File Upload vulnerability in ArcGIS Server.

Critical 9.8 Published Updated

Unauthenticated attackers can upload arbitrary files to ArcGIS Server, potentially leading to code execution or data modification.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-9182?

CVE-2026-9182 is a critical vulnerability in Esri Arcgis Server, published on 6 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-434

Which versions are affected by CVE-2026-9182?

It affects 1 product.

Products include Esri Arcgis Server.

How do I fix CVE-2026-9182?

No fix has been published for CVE-2026-9182 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-9182 being exploited?

There is no known exploitation of CVE-2026-9182 in the wild and no public exploit code.

All Esri Arcgis Server vulnerabilities

Sources

Also known as GHSA-xj4c-7w4q-9gwv.

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