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Vulnerability record · CVE-2026-73878 · published 18 August 2026

CVE-2026-73878: Oracle helidon information exposure vulnerability

Oracle · Helidon

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 3.0.0-3.2.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

7.5 CVSS 3.1 High EPSS 0.44% · top 64.5% CWE-200 · Information exposure
7.5CVSS 3.1 base score
0.44%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
28 Aug 2026Last modified by NVD

Description

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 3.0.0-3.2.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.9CVE-2026-73930Oracle helidon improper access control vulnerabilityVulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 3.0.0-3…EPSS 0.37%9.8CVE-2026-73921Oracle helidon improper access control vulnerabilityVulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 1.0.0-1…EPSS 0.51%9.8CVE-2026-73912Oracle helidon improper access control vulnerabilityVulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 4.0.0-4…EPSS 0.51%9.8CVE-2026-73905Oracle helidon improper access control vulnerabilityVulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 4.0.0-4…EPSS 0.51%9.8CVE-2026-71164Oracle helidon improper access control vulnerabilityVulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 3.0.0-3…EPSS 0.51%9.8CVE-2026-71152Oracle helidon improper access control vulnerabilityVulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 3.0.0-3…EPSS 0.51%9.8CVE-2026-71074Oracle helidon improper access control vulnerabilityVulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 1.0.0-1…EPSS 0.51%9.4CVE-2026-73920Oracle helidon improper access control vulnerabilityVulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 4.0.0-4…EPSS 0.46%

Source: NIST National Vulnerability Database (record CVE-2026-73878), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.