CVE-2026-83480

MEDIUM 5.3CVE-2026-83480 · Published 15/09/2026 · updated 25/09/2026

In short

CVE-2026-83480 is a MEDIUM (CVSS 5.3) vulnerability affecting helidon (oracle).
Chance of exploitation in the next 30 days (EPSS): 0.41%, higher than 35.4% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
helidon oracle	`≥ 4.0.0, ≤ 4.5.4`	No fix yet

Description

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: WebSocket). Supported versions that are affected are 4.0.0-4.5.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Helidon. CVSS 3.1 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

References

oracle.com/security-alerts/cspusep2026.html · Vendor Advisory

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Package

Affected versions

Patched versions

helidon

oracle

≥ 4.0.0, ≤ 4.5.4

No fix yet

Description

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