CVE.org (no NVD analysis yet)· CNA Esri

CVE-2026-69227: BUG-000187331 Portal for ArcGIS has a security vulnerability

Noroxi assessment

Priority: Monitor (action score 39/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.32% (FIRST EPSS).
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A flaw in Portal for ArcGIS allows unauthenticated access to certain Portal Administrator API endpoints under specific conditions. This could enable an attacker to access administrative functionality that should require authentication.

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded

EUVD-2026-98842

Published: Oct 13, 2026
Updated: Oct 16, 2026
EPSS: 0.3% · 25th percentile
CWE: CWE-306

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.3%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: —
CNA · Esri: 9.8; NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

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Versions reported by the vendor

Affected version ranges reported by the assigning authority (Esri). Independent of NVD's CPE analysis and usually ahead of it.

Esri Portal for ArcGIS
- 11.1 and later · up to and including 12.1affected

Same product

esri: all records

Other highest-scoring records for the same primary product.

CVE-2026-13020Weak Password Recovery Mechanism in Portal for ArcGIS
39Monitor
CVE-2026-13019Missing Authentication
39Monitor
CVE-2026-33519Incorrect privilege assignment in Portal for ArcGIS
39Monitor

Published before and after this one in the same product

← EarlierCVE-2026-69238Aug 21, 2026 · HTML injection vulnerability in Esri Portal for ArcGIS
19Monitor
← EarlierCVE-2026-10759Oct 13, 2026 · BUG-000171040 Portal for ArcGIS has a security vulnerability
22Monitor
← EarlierCVE-2026-69226Oct 13, 2026 · Portal for ArcGIS has a security vulnerability
26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2026-6922853 days apartmissing authentication vulnerability in Esri Portal for ArcGIS
21Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

CVE-2026-6923153 days apartstored cross site scripting issue in Esri Portal for ArcGIS
22Monitor
CVE-2026-6923253 days apartstored cross site scripting issue in Esri Portal for ArcGIS
22Monitor
CVE-2026-6923353 days apartstored cross site scripting issue in Esri Portal for ArcGIS
22Monitor
CVE-2026-6923053 days apartstored cross site scripting issue in Esri Portal for ArcGIS
19Monitor

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-306 · Missing Authentication for Critical Function

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Root cause

A function added for development or support ships to production without authentication. It often relies on the assumption that it is “only reachable from the internal network.”

The bug in code

The whole CWE-306 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1// Added for the support team
2app.post("/maintenance/reset", resetDevice);

Fixed

1if (config.maintenanceEnabled) {
2  app.post(
3    "/maintenance/reset",
4    requireSession, requireRole("admin"), resetDevice
5  );
6}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

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Change log

SSVC exploitation— → noneOct 13, 2026, 9:07 PM UTC
Exploit maturity— → noneOct 13, 2026, 6:07 PM UTC

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References

www.esri.com/arcgis-blog/products/trust-arcgis/administration/september-2026-arcgis-security-bulletin

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records