CVE-2026-83458CWE-400denial-of-service

CVE-2026-83458

Medium · published September 16, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
34.3
In the wild
Unconfirmed
What it is

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: JSON). 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).

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00411 · 34.3th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2026-09-16T00:18Z
Affected products (1)
ProductVersionsFixed in
oracle/helidon≥ 4.0.0, ≤ 4.5.4—
References (1)
https://www.oracle.com/security-alerts/cspusep2026.html · [email protected]
EPSS history
Timeline
  • 17 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 15 SEP 20:05Z
    Vulnerability in the Helidon product of Oracle Fusion Middleware (component: JSON)
    cvelistv5