CVE-2026-83439

high

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-security-providers-idcs-mapper).

Vendor / product: Oracle — helidon

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-security-providers-idcs-mapper). Supported versions that are affected are 3.0.0-3.2.20 and 4.0.0-4.5.4. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Helidon accessible data as well as unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

CVSS

8.1

8.1 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Severity source: NVD CVSS v3.1 (secalert_us@oracle.com)

Timeline (UTC)

Published: 2026-09-15 20:18

Modified: 2026-09-28 15:20

NVD status: Analyzed

Last synced 1 day ago

Verified against the source API 2026-10-27 06:53 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

oracle / helidon ≥3.0.0 ≤3.2.20, ≥4.0.0 ≤4.5.4

Weakness classification (CWE)

CWE-284

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://www.oracle.com/security-alerts/cspusep2026.html

References

https://www.oracle.com/security-alerts/cspusep2026.html secalert_us@oracle.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:53 UTC · record ↗

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CVE-2026-83439

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Weakness classification (CWE)

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