PatchSiren

Esri CVE debriefs

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

CRITICAL Esri CVE published 2026-04-21

CVE-2026-33519

CVE-2026-33519 is a critical incorrect-authorization vulnerability in Esri Portal for ArcGIS. Esri’s April 2026 security bulletin and the NVD record describe a failure to correctly check permissions assigned to developer credentials. The NVD entry rates the issue CVSS 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), indicating a remotely reachable flaw with potential high impact to confidentiality, integrity, a [truncated]

CRITICAL Esri CVE published 2026-04-21

CVE-2026-33518

CVE-2026-33518 is a critical vulnerability in Esri Portal for ArcGIS 11.5 on Windows and Linux. The issue is described as an incorrect privilege assignment that can allow developer credentials to end up with more privileges than expected. NVD rates the flaw as CVSS 3.1 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), so defenders should treat it as urgent even though the vendor-facing description centers on pri [truncated]