Helidon vulnerabilities
99 known CVE vulnerabilities in Helidon, translated and rated.
- CVE-2026-73896Medium
A vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server) affects versions 4.0.0-4.4.1. It is easily exploitable by an unauthenticated attacker with network access via HTTP/2, potentially leading to unauthorized read access to a subset of data and partial denial of service. CVSS 3.1 Base Score is 6.5 (Confidentiality and Availability impacts).
- CVE-2026-73895Medium
A vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server) affects versions 3.0.0-3.2.17. It is easily exploitable by an unauthenticated attacker with network access via HTTP, potentially leading to unauthorized read access to a subset of data. CVSS 3.1 Base Score is 5.3 (Confidentiality impacts).
- CVE-2026-73894High
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) in versions 4.0.0-4.4.1. Easily exploitable by unauthenticated attacker via network HTTP, can lead to unauthorized update, insert or delete access to some data, unauthorized read access to a subset of data, and partial denial of service. CVSS 3.1 Base Score 7.3 (Confidentiality, Integrity and Availability impacts).
- CVE-2026-73893Medium
Vulnerability in Oracle Fusion Middleware Helidon (component: Imperative Web Server) versions 4.0.0-4.4.1. Easily exploitable by unauthenticated attacker with network access via HTTP. Successful attacks can result in unauthorized update, insert or delete access to some data and unauthorized read access to a subset of data. CVSS 6.5.
- CVE-2026-73892Medium
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affecting versions 4.0.0-4.4.1. 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, as well as unauthorized read access to a subset of that data. CVSS 3.1 Base Score 6.5 (Confidentiality and Integrity impacts).
- CVE-2026-73891High
Vulnerability in Oracle Fusion Middleware Helidon (Imperative Web Server) versions 4.0.0-4.4.1. Easily exploitable by unauthenticated attacker with network access via HTTP, can lead to unauthorized update, insert, delete, read access, and partial denial of service.
- CVE-2026-73890High
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) in versions 4.0.0-4.4.1. Easily exploitable by unauthenticated attacker via network HTTP/2, can cause hang or frequent crashes (complete DoS) of Helidon. CVSS 3.1 Base Score 7.5 (Availability impact).
- CVE-2026-73889Medium
A vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server) affects versions 4.0.0-4.4.1. It is easily exploitable by an unauthenticated attacker with network access via HTTP, potentially leading to unauthorized read access to a subset of data. CVSS 3.1 Base Score is 5.3 (Confidentiality impacts).
- CVE-2026-73888Medium
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) in versions 4.0.0-4.4.1. Easily exploitable flaw allows unauthenticated attacker with network access via HTTP to gain unauthorized read access to a subset of Helidon accessible data. CVSS 5.3 (Confidentiality impact).
- CVE-2026-73887High
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) in versions 4.0.0-4.4.1. Easily exploitable by unauthenticated attacker via network HTTP/2, can lead to unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impact).
- CVE-2026-73886High
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) in versions 4.0.0-4.4.1. Easily exploitable by unauthenticated attacker via network HTTP, can lead to unauthorized update, insert or delete access to some data and unauthorized read access to a subset of data. Attacks may significantly impact additional products (scope change). CVSS 3.1 Base Score 7.2 (Confidentiality and Integrity impacts).
- CVE-2026-73885High
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) in versions 3.0.0-3.2.17. Easily exploitable by unauthenticated attacker via network HTTP, can lead to unauthorized update, insert or delete access to some data and unauthorized read access to a subset of data. Attacks may significantly impact additional products (scope change). CVSS 3.1 Base Score 7.2 (Confidentiality and Integrity impacts).
- CVE-2026-73884High
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affecting versions 4.0.0-4.4.1. Easily exploitable by unauthenticated attacker with network access via HTTP, allowing unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 7.5 (Confidentiality impact).
- CVE-2026-73883High
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affecting versions 3.0.0-3.2.17. Easily exploitable by unauthenticated attacker with network access via HTTP, allowing unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 7.5 (Confidentiality impact).
- CVE-2026-73882High
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affecting versions 3.0.0-3.2.18. Easily exploitable by unauthenticated attacker with network access via HTTP, leading to hang or frequent crashes (complete DoS) of Helidon. CVSS 7.5 (Availability impact).
- CVE-2026-73881Medium
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affecting versions 4.0.0-4.4.1. A low privileged 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, as well as unauthorized read access to a subset of that data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts).
- CVE-2026-73880Medium
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affects versions 4.0.0-4.5.0. It is easily exploitable, allowing a high 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.
- CVE-2026-73879High
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affecting versions 4.0.0-4.5.0. Easily exploitable by an unauthenticated attacker with network access via HTTP, allowing unauthorized creation, deletion, or modification of critical data or all Helidon accessible data. CVSS 3.1 Base Score 7.5 (Integrity impact).
- CVE-2026-73878High
Vulnerability in Oracle Fusion Middleware Helidon (Imperative Web Server) versions 3.0.0-3.2.17. An unauthenticated attacker via HTTP can gain unauthorized access to critical data or complete access to all Helidon accessible data.
- CVE-2026-73877Medium
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 HTTP to gain unauthorized read access to a subset of Helidon accessible data. CVSS 5.3 (Confidentiality impact).
- CVE-2026-73876High
Vulnerability in Oracle Fusion Middleware Helidon (Imperative Web Server) versions 4.0.0-4.5.0. Easily exploitable by unauthenticated attacker with network access via HTTP, can lead to unauthorized update, insert, delete, and read access to some data. Attacks may impact additional products (scope change).
- CVE-2026-73875High
Vulnerability in Oracle Fusion Middleware Helidon (Imperative Web Server) versions 3.0.0-3.2.18. Easily exploitable by unauthenticated attacker with network access via HTTP, can lead to unauthorized update, insert, delete, and read access to some data. Attacks may impact additional products (scope change).
- CVE-2026-73874Medium
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 network access via HTTP to compromise Helidon. 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 Helidon accessible data.
- CVE-2026-73873Medium
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affects versions 3.0.0-3.2.17. It is difficult to exploit, allowing a low privileged attacker with network access via HTTP to compromise Helidon. 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 Helidon accessible data.
- CVE-2026-73872Medium
Vulnerability in Oracle Fusion Middleware Helidon (component: Imperative Web Server) versions 4.0.0-4.4.1. Easily exploitable by unauthenticated attacker with network access via HTTP. Successful attacks can result in unauthorized read access to a subset of data. CVSS 5.3.
- CVE-2026-73871Medium
Vulnerability in Oracle Fusion Middleware Helidon (component: Imperative Web Server) versions 3.0.0-3.2.17. Easily exploitable by unauthenticated attacker with network access via HTTP. Successful attacks can result in unauthorized read access to a subset of data. CVSS 5.3.
- CVE-2026-73870Medium
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affects versions 4.0.0-4.4.1. It is easily exploitable, allowing an unauthenticated attacker with network access via HTTP to compromise Helidon, but requires user interaction. Attacks may significantly impact additional products (scope change) and can result in unauthorized update, insert, or delete access to some Helidon accessible data as well as unauthorized read access to a subset of Helidon accessible data.
- CVE-2026-73869Medium
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affects versions 3.0.0-3.2.17. It is easily exploitable, allowing an unauthenticated attacker with network access via HTTP to compromise Helidon, but requires user interaction. Attacks may significantly impact additional products (scope change) and can result in unauthorized update, insert, or delete access to some Helidon accessible data as well as unauthorized read access to a subset of Helidon accessible data.
- CVE-2026-73868Medium
Vulnerability in Oracle Fusion Middleware Helidon (component: Imperative Web Server) versions 4.0.0-4.4.1. Easily exploitable by unauthenticated attacker with network access via HTTP. Successful attacks can result in unauthorized update, insert or delete access to some data and unauthorized read access to a subset of data. CVSS 6.5.
- CVE-2026-73867Medium
Vulnerability in Oracle Fusion Middleware Helidon (component: Imperative Web Server) versions 3.0.0-3.2.17. Easily exploitable by unauthenticated attacker with network access via HTTP. Successful attacks can result in unauthorized update, insert or delete access to some data and unauthorized read access to a subset of data. CVSS 6.5.
- CVE-2026-71165Medium
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affecting versions 3.0.0-3.2.17. A low privileged 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, as well as unauthorized read access to a subset of that data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts).
- CVE-2026-71162Medium
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) in versions 3.0.0-3.2.17. Difficult to exploit flaw allows unauthenticated attacker with network access via HTTP to gain 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. CVSS 6.5 (Confidentiality and Integrity impacts).
- CVE-2026-71161Medium
A vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server) affects versions 3.0.0-3.2.17. It is easily exploitable by an unauthenticated attacker with network access via HTTP, potentially leading to a partial denial of service (partial DoS). CVSS 3.1 Base Score is 5.3 (Availability impacts).
- CVE-2026-71160High
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affecting versions 1.0.0-1.4.18 and 3.0.0-3.2.17. Difficult to exploit, requires low-privileged attacker with network access via HTTP, allows takeover of Helidon. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity, Availability impacts).
- CVE-2026-71159High
Vulnerability in Oracle Fusion Middleware Helidon product (component: Imperative Web Server) affecting versions 3.0.0-3.2.17. Easily exploitable by an unauthenticated attacker with network access via HTTP, allowing 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 8.2 (Confidentiality and Integrity impacts).
- CVE-2026-71158High
Vulnerability in Oracle Fusion Middleware Helidon (Imperative Web Server) versions 3.0.0-3.2.17. An unauthenticated attacker via HTTP can gain unauthorized access to critical data or complete access to all Helidon accessible data.
- CVE-2026-71157Medium
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. Easily exploitable flaw allows unauthenticated attacker with network access via HTTP to gain unauthorized read access to a subset of Helidon accessible data. CVSS 5.3 (Confidentiality impact).
- 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).

