Missing authentication in Esri Portal for ArcGIS
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-640.
Summary
Esri Portal for ArcGIS versions 12.1 and earlier on Windows, Linux and Kubernetes have a missing authentication for critical function vulnerability allows a remote, unauthenticated attacker to access an unprotected API. The following versions are known to be affected: Portal for ArcGIS 12.1 and earlier. Other unsupported versions may also be affected. Esri recommends that users apply the Portal for ArcGIS Security 2026 Update 2 Patch to remediate this vulnerability.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Esri | Portal for ArcGIS | before 12.1 | 12.1 | Patch available | CNA |
- Portal for ArcGIS VendorEsri Affected before 12.1 Fixed in 12.1 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:esri:portal_for_arcgis:*:*:*:*:*:*:*:* | up to 12.1 | Vulnerable | Esri |
| cpe:2.3:a:kubernetes:kubernetes:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Kubernetes |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:esri:portal_for_arcgis:*:*:*:*:*:*:*:* Versions up to 12.1 Vulnerable ·Esri
- cpe:2.3:a:kubernetes:kubernetes:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Kubernetes
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
- Fix · CNA Portal for ArcGIS (Esri) Fixed in 12.1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Esri Portal for ArcGIS 12.1
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2026-11075 Weak Password Recovery Mechanism in Portal for ArcGISPriority MEDIUM 43
Timeline
- 2026-10-02 Threatist record created from CVE-2026-13019
- 2026-10-03 Alias added: GHSA-6rrr-4jqj-5947
References
More Esri Portal For Arcgis vulnerabilities
- TI-2024-16901 Portal for ArcGIS has a directory traversal vulnerability. CVSS 3.1CRITICAL 9.9
- TI-2025-02208 BUG-000174336 CVSS 3.1CRITICAL 9.8
- TI-2026-25915 Incorrect privilege assignment in Portal for ArcGIS CVSS 3.1CRITICAL 9.8
- TI-2026-25914 Incorrect privilege assignment in Portal for ArcGIS CVSS 3.1CRITICAL 9.8
- TI-2025-04452 Server Side Request Forgery (SSRF) vulnerability in Portal for ArcGIS CVSS 3.1CRITICAL 9.1
- TI-2022-17897 Portal for ArcGIS has a directory traversal vulnerability (10.9.1, 10.8.1 and 10.7.1 only) CVSS 3.1HIGH 8.6
Sources
- CVE-2026-13019 · CVE Program
- CVE-2026-13019 · NVD
- FIRST EPSS
- GHSA-6rrr-4jqj-5947 · 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