CVE-2026-73890

HIGH 7.5CVE-2026-73890 · Published 18/08/2026 · updated 22/10/2026

In short

CVE-2026-73890 is a HIGH (CVSS 7.5) vulnerability affecting helidon (oracle).
Chance of exploitation in the next 30 days (EPSS): 0.43%, higher than 37.8% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
helidon oracle	`= 4.5.0`	No fix yet

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/2 to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Helidon. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

References

oracle.com/security-alerts/cspuaug2026.html · Vendor Advisory

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Package

Affected versions

Patched versions

helidon

oracle

= 4.5.0

No fix yet

Description

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