CVE-2026-73898 Missing authorization in Helidon
Unauthenticated attackers can read and modify Helidon data via HTTP, requiring user interaction, impacting confidentiality and integrity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-73898?
CVE-2026-73898 is a medium-severity missing authorization vulnerability in Oracle Helidon, published on 18 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 4.0.0-4.4.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data as well as unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 6.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).
Weakness: CWE-284
Which versions are affected by CVE-2026-73898?
It affects 1 product.
Products include Oracle Helidon.
How do I fix CVE-2026-73898?
No fix has been published for CVE-2026-73898 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-73898 being exploited?
There is no known exploitation of CVE-2026-73898 in the wild and no public exploit code.
Other vulnerabilities in Oracle Helidon
Sources
Also known as GHSA-9j2j-gf73-89x6.