CVE-2026-2812

Description

ArcGIS Server contains an improper authentication vulnerability in an undocumented administrative endpoint. An unauthenticated attacker could exploit this issue by sending a crafted request to the endpoint. Successful exploitation may result in disruption of the web-based browsing interface. This issue affects ArcGIS Server 12.0 and earlier.

PUBLISHED Reserved 2026-02-19 | Published 2026-05-20 | Updated 2026-05-20 | Assigner Esri

Problem types

CWE-287 Improper Authentication

Product status

References

www.esri.com/...s/administration/april2026_security_bulletin

cve.org (CVE-2026-2812)

nvd.nist.gov (CVE-2026-2812)

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