CVE-2026-73921

CRITICAL 9.8CVE-2026-73921 · Published 18/08/2026 · updated 22/10/2026

In short

CVE-2026-73921 is a CRITICAL (CVSS 9.8) vulnerability affecting helidon (oracle).
Chance of exploitation in the next 30 days (EPSS): 0.51%, higher than 43.4% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
helidon oracle	`= 1.4.20`	No fix yet

Description

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: Imperative Web Server). Supported versions that are affected are 1.0.0-1.4.19. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in takeover of Helidon. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

References

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

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Package

Affected versions

Patched versions

helidon

oracle

= 1.4.20

No fix yet

Description

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