Paper/Archive/CVE-2026-9182

CVE-2026-9182

Esri ArcGIS Server — Unvalidated File Upload vulnerability in ArcGIS Server.

CVSS 9.8 (CNA)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 49.7.497 × 209.9 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

ArcGIS Server≤ 12.0–CNA

Scores by source

Esri (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refesri.com/arcgis-blog/products/arcgis-enterprise/administration/may-2026-arcgis-security-bulletin