CVE-2026-83459: 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. in Oracle Corporation Helidon
A vulnerability in the Helidon product of Oracle Fusion Middleware (component helidon-media-multipart) affects versions 3.0.0 through 3.2.20. It allows an unauthenticated attacker with network access via HTTP to cause a partial denial of service (DoS) condition. The vulnerability has a CVSS 3.1 base score of 5.3, indicating a medium severity impact focused on availability.
AI Analysis
Technical Summary
CVE-2026-83459 is a vulnerability in the helidon-media-multipart component of Oracle Fusion Middleware's Helidon product. The affected versions are 3.0.0 through 3.2.20. The flaw allows an unauthenticated attacker with network access via HTTP to cause a partial denial of service, impacting the availability of the Helidon service. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability.
Potential Impact
Successful exploitation results in partial denial of service of the Helidon service, potentially disrupting availability. There is no impact on confidentiality or integrity. The vulnerability is exploitable remotely without authentication.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of their September 2026 Critical Security Patch Update. Affected users should apply the official patches promptly to remediate the issue. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. Patch availability and installation instructions are provided in the Oracle advisory. No alternative mitigations or workarounds are specified.
CVE-2026-83459: 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. in Oracle Corporation Helidon
Description
A vulnerability in the Helidon product of Oracle Fusion Middleware (component helidon-media-multipart) affects versions 3.0.0 through 3.2.20. It allows an unauthenticated attacker with network access via HTTP to cause a partial denial of service (DoS) condition. The vulnerability has a CVSS 3.1 base score of 5.3, indicating a medium severity impact focused on availability.
CVSS v3.1
Score 5.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-83459 is a vulnerability in the helidon-media-multipart component of Oracle Fusion Middleware's Helidon product. The affected versions are 3.0.0 through 3.2.20. The flaw allows an unauthenticated attacker with network access via HTTP to cause a partial denial of service, impacting the availability of the Helidon service. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability.
Potential Impact
Successful exploitation results in partial denial of service of the Helidon service, potentially disrupting availability. There is no impact on confidentiality or integrity. The vulnerability is exploitable remotely without authentication.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of their September 2026 Critical Security Patch Update. Affected users should apply the official patches promptly to remediate the issue. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. Patch availability and installation instructions are provided in the Oracle advisory. No alternative mitigations or workarounds are specified.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-g4qc-w2f7-c3fc
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-83459"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aaa07db55bf5e2cf5ea3257
Added to database: 09/16/2026, 03:07:07 UTC
Last enriched: 09/16/2026, 03:46:45 UTC
Last updated: 09/16/2026, 05:01:22 UTC
Views: 1
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