Helidon vulnerabilities
112 known CVE vulnerabilities in Helidon, translated and rated.
- CVE-2026-71156Medium
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affecting versions 3.0.0-3.2.18. An unauthenticated attacker with network access via HTTP can exploit this. Successful attacks can result in unauthorized update, insert, or delete access to some Helidon accessible data. CVSS 3.1 Base Score 5.3 (Integrity impacts).
- CVE-2026-71155High
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affecting versions 3.0.0-3.2.17. Easily exploitable by a low-privileged attacker with network access via HTTP, may significantly impact additional products (scope change). Allows unauthorized access to critical data or complete access to all Helidon data, as well as unauthorized update, insert, or delete of some data. CVSS 3.1 Base Score 8.5 (Confidentiality and Integrity impacts).
- CVE-2026-71154Medium
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affects versions 4.0.0-4.4.1. It is easily exploitable, allowing a low privileged attacker with logon to the infrastructure where Helidon executes to compromise Helidon. Successful attacks can result in unauthorized access to critical data or complete access to all Helidon accessible data as well as unauthorized update, insert, or delete access to some Helidon accessible data.
- CVE-2026-71153High
Vulnerability in Oracle Fusion Middleware Helidon (Imperative Web Server) versions 1.0.0-1.4.19. An unauthenticated attacker via HTTP can cause a hang or frequently repeatable crash (complete DoS) of Helidon.
- CVE-2026-71110High
Vulnerability in Oracle Fusion Middleware Helidon (Imperative Web Server) versions 1.0.0-1.4.18, 3.0.0-3.2.17, and 4.0.0-4.4.1. A low-privileged attacker via HTTPS can gain unauthorized access to critical data and the ability to create, delete, or modify it.
- CVE-2026-71029Medium
Vulnerability in Oracle Fusion Middleware Helidon (component: Imperative Web Server) versions 3.0.0-3.2.17. Difficult to exploit but allows unauthenticated attacker with network access via HTTP to compromise Helidon. Attacks may impact additional products (scope change). Successful attacks can result in unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 6.8.
- CVE-2026-70923Medium
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affecting versions 3.0.0-3.2.18. An unauthenticated attacker with network access via HTTP can exploit this, but requires user interaction. Successful attacks can result in unauthorized update, insert, or delete access to some Helidon accessible data, as well as unauthorized read access to a subset of that data. CVSS 3.1 Base Score 6.1 (Confidentiality and Integrity impacts).
- CVE-2026-70908High
Vulnerability in Oracle Fusion Middleware Helidon (Imperative Web Server) versions 3.0.0-3.2.17. An unauthenticated attacker via HTTP can cause a hang or frequently repeatable crash (complete DoS) of Helidon.
- CVE-2026-70727Medium
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) in versions 3.0.0-3.2.17. Easily exploitable flaw allows unauthenticated attacker with network access via HTTPS to gain unauthorized read access to a subset of Helidon accessible data. CVSS 5.3 (Confidentiality impact).
- CVE-2026-70716Medium
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) in versions 3.0.0-3.2.17 and 4.0.0-4.4.1. Difficult to exploit flaw allows unauthenticated attacker with network access via HTTP to gain unauthorized creation, deletion or modification access to critical data or all Helidon accessible data. CVSS 5.9 (Integrity impact).
- CVE-2026-60915High
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affecting versions 3.0.0-3.2.17 and 4.0.0-4.4.1. Difficult to exploit by unauthenticated attacker with network access via HTTP, allowing unauthorized creation, deletion or modification of critical data as well as unauthorized access to critical data. CVSS 7.4 (Confidentiality and Integrity impact).
- CVE-2026-60853Low
Vulnerability in Oracle Fusion Middleware's Helidon product (component: Imperative Web Server) in versions 3.0.0-3.2.19. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon, resulting in unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 3.7 (Confidentiality impacts).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

