How severe is CVE-2026-33519?

CVE-2026-33519 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-33519 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33519?

CVE-2026-33519 primarily affects Esri Portal For Arcgis. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-33519?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-33519 have an EU (EUVD) identifier?

Yes. CVE-2026-33519 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24339.

When was CVE-2026-33519 published?

CVE-2026-33519 was published on 2026-04-21 and last updated on 2026-06-17.

CVE-2026-33519

CVE-2026-33519 is a critical-severity vulnerability in Esri Portal For Arcgis with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-266.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-24339
Weakness: CWE-266
Affected product: Esri Portal For Arcgis
Published: 2026-04-21
Last modified: 2026-06-17

Description

An incorrect authorization vulnerability exists in Esri Portal for ArcGIS 11.4, 11.5 and 12.0 on Windows, Linux and Kubernetes that did not correctly check permissions assigned to developer credentials.

Frequently asked questions

What is CVE-2026-33519?: An incorrect authorization vulnerability exists in Esri Portal for ArcGIS 11.4, 11.5 and 12.0 on Windows, Linux and Kubernetes that did not correctly check permissions assigned to developer credentials.
How severe is CVE-2026-33519?: CVE-2026-33519 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-33519 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33519?: CVE-2026-33519 primarily affects Esri Portal For Arcgis. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-33519?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-33519 have an EU (EUVD) identifier?: Yes. CVE-2026-33519 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-24339.
When was CVE-2026-33519 published?: CVE-2026-33519 was published on 2026-04-21 and last updated on 2026-06-17.

References

https://www.esri.com/arcgis-blog/products/trust-arcgis/administration/april2026_security_bulletin

Affected products (3)

cpe:2.3:a:esri:portal_for_arcgis:11.4:-:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:11.5:-:*:*:*:*:*:*
cpe:2.3:a:esri:portal_for_arcgis:12.0:-:*:*:*:*:*:*

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