CVE-2026-9182: CWE-434 Unrestricted Upload of File with Dangerous Type in Esri ArcGIS Server
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.
AI Analysis
Technical Summary
CVE-2026-9182 is an unrestricted file upload vulnerability in Esri ArcGIS Server (Windows and Linux versions 12.0 and earlier). This vulnerability allows unauthenticated attackers to upload crafted files to an affected endpoint, which could lead to arbitrary file upload and potentially enable further exploitation. The issue does not affect ArcGIS Enterprise for Kubernetes. No official patch or remediation level has been published yet, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation could allow an unauthenticated attacker to upload arbitrary files to the server, potentially leading to remote code execution, data compromise, or denial of service. The vulnerability affects confidentiality, integrity, and availability, as reflected by the CVSS score of 9.8 (critical).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the affected endpoints and monitor for suspicious file upload activity. Note that ArcGIS Enterprise for Kubernetes is not affected.
CVE-2026-9182: CWE-434 Unrestricted Upload of File with Dangerous Type in Esri ArcGIS Server
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.
CVSS v3.1
Score 9.8critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-9182 is an unrestricted file upload vulnerability in Esri ArcGIS Server (Windows and Linux versions 12.0 and earlier). This vulnerability allows unauthenticated attackers to upload crafted files to an affected endpoint, which could lead to arbitrary file upload and potentially enable further exploitation. The issue does not affect ArcGIS Enterprise for Kubernetes. No official patch or remediation level has been published yet, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation could allow an unauthenticated attacker to upload arbitrary files to the server, potentially leading to remote code execution, data compromise, or denial of service. The vulnerability affects confidentiality, integrity, and availability, as reflected by the CVSS score of 9.8 (critical).
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the affected endpoints and monitor for suspicious file upload activity. Note that ArcGIS Enterprise for Kubernetes is not affected.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Esri
- Date Reserved
- 2026-05-21T14:53:09.293Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4c076a27e9c7971920cc34
Added to database: 07/06/2026, 19:52:10 UTC
Last enriched: 07/14/2026, 08:46:19 UTC
Last updated: 08/20/2026, 05:58:09 UTC
Views: 166
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