Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-69238

CVE-2026-69238MEDIUM

Esri Portal for ArcGIS — HTML injection vulnerability in Esri Portal for ArcGIS

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   H   R  C  L  L  N    4.8   .0024   14.0     —

AFFECTED
  Product            Versions  Fixed
  Portal for ArcGIS  11.1 –    —

TIMELINE
  Aug 3   Reserved by Esri
  Aug 21  Published (CNA: Esri)
  Sep 11  RESCORED — CVE-2026-69238 (Esri Portal for ArcGIS). CVSS 3.5 → 4.8 (NVD).

CWE-79 · CNA: Esri · CVSS v3.1 · 1 reference · NVD status: Analyzed

Description

There is an HTML injection vulnerability in Esri Portal for ArcGIS versions 11.5 and prior that allows a remote, highly priviliged attacker to insert arbitrary HTML into the Portal for ArcGIS Home application. Users working with ArcGIS Enterprise 11.1, 11.3, and 11.5 are encouraged to patch. All users are advised to upgrade to the latest long-term support release.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 3, 2026	Reserved	Reserved by Esri
August 21, 2026	Published	Published (CNA: Esri)
September 11, 2026	RESCORED	RESCORED — CVE-2026-69238 (Esri Portal for ArcGIS). CVSS 3.5 → 4.8 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Esri	Portal for ArcGIS	—	11.1	—

Weaknesses

CWE-79

References (1)

https://www.esri.com/arcgis-blog/products/arcgis-enterprise/administration/august-2026-arcgis-security-bulletin [Vendor Advisory]

Authoritative record: CVE-2026-69238 at cve.org

Vendors: esri

Weaknesses: CWE-79

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-69238 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.