Portal for ArcGIS lets unauthenticated users create accounts
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
Esri Portal for ArcGIS versions from 0 through 12.2 contain an incorrect authorization flaw (CWE-863). The sharing endpoint lets unauthenticated users create new accounts even when self-service signup is disabled (disableSignup=true). An unauthenticated remote attacker can bypass the intended restriction by manipulating the signup workflow, creating unauthorized accounts.
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
Description from the CNA
A flaw in Portal for ArcGIS allows unauthenticated users to create new accounts through the sharing endpoint even when self-service account registration is disabled (disableSignup=true). An attacker can bypass the intended restriction by manipulating the signup workflow, resulting in unauthorized account creation.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
The sources list no fixed version for Portal for ArcGIS.
Written with Claude Haiku 5.5 from the sources below · 2026-10-27
Timeline
- 2026-10-13 Threatist record created from CVE-2026-69226
- 2026-10-13 Alias added: GHSA-vq46-qwv8-wvp8
- 2026-10-13 CISA SSVC decision points changed
- 2026-10-13 Priority changed: MEDIUM → LOW
References
More Esri vulnerabilities
- TI-2024-16901 Portal for ArcGIS has a directory traversal vulnerability. CVSS 3.1CRITICAL 9.9
- TI-2012-01450 ESRI ArcMap 9 and ArcGIS 10.0.2.3200 and earlier does not properly prompt users before… CVSS 2.0HIGH 9.3
- TI-2007-01695 Buffer overflow in the ArcSDE service (giomgr) in Environmental Systems Research… CVSS 2.0HIGH 10.0
- TI-2026-08070 Directory Traversal in ArcGIS Server CVSS 3.1CRITICAL 9.8
- TI-2026-11074 Missing authentication in Esri Portal for ArcGIS CVSS 3.1CRITICAL 9.8
- TI-2025-35724 BUG-000179884 - There is a security vulnerability in ArcGIS Server Feature Services. CVSS 3.1CRITICAL 10.0
Sources
- CVE-2026-69226 · CVE Program
- CVE-2026-69226 · NVD
- FIRST EPSS
- GHSA-vq46-qwv8-wvp8 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences