CVE-2026-83480: 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
CVE-2026-83480 is a vulnerability in Oracle Helidon versions 4.0.0 through 4.5.4 affecting the WebSocket component. 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 primarily impacting availability. Oracle has included this vulnerability in its September 2026 Critical Security Patch Update, which provides patches for affected versions.
AI Analysis
Technical Summary
This vulnerability in Oracle Helidon's WebSocket component allows an unauthenticated attacker with network access over HTTP to cause a partial denial of service. The affected versions are 4.0.0 through 4.5.4. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) reflects that the attack requires no privileges or user interaction and impacts availability only. Oracle has addressed this vulnerability in its September 2026 Critical Security Patch Update, which includes patches for Helidon versions 3.0.0-3.2.20 and 4.0.0-4.5.4 among other products.
Potential Impact
Successful exploitation results in unauthorized partial denial of service of the Helidon product, impacting availability but not confidentiality or integrity. The vulnerability is exploitable remotely without authentication or user interaction, increasing the risk of disruption to services relying on Helidon WebSocket functionality.
Mitigation Recommendations
Oracle has released patches for this vulnerability as part of the September 2026 Critical Security Patch Update. Users of affected Helidon versions (4.0.0 through 4.5.4) should apply the official patches promptly to remediate this issue. Oracle strongly recommends staying on actively supported versions and applying security patches without delay. No alternative mitigations or workarounds are specified in the advisory.
CVE-2026-83480: 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
CVE-2026-83480 is a vulnerability in Oracle Helidon versions 4.0.0 through 4.5.4 affecting the WebSocket component. 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 primarily impacting availability. Oracle has included this vulnerability in its September 2026 Critical Security Patch Update, which provides patches for affected versions.
CVSS v3.1
Score 5.3medium
Affected software
Oracle Corporation
Helidon
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Oracle Helidon's WebSocket component allows an unauthenticated attacker with network access over HTTP to cause a partial denial of service. The affected versions are 4.0.0 through 4.5.4. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) reflects that the attack requires no privileges or user interaction and impacts availability only. Oracle has addressed this vulnerability in its September 2026 Critical Security Patch Update, which includes patches for Helidon versions 3.0.0-3.2.20 and 4.0.0-4.5.4 among other products.
Potential Impact
Successful exploitation results in unauthorized partial denial of service of the Helidon product, impacting availability but not confidentiality or integrity. The vulnerability is exploitable remotely without authentication or user interaction, increasing the risk of disruption to services relying on Helidon WebSocket functionality.
Mitigation Recommendations
Oracle has released patches for this vulnerability as part of the September 2026 Critical Security Patch Update. Users of affected Helidon versions (4.0.0 through 4.5.4) should apply the official patches promptly to remediate this issue. Oracle strongly recommends staying on actively supported versions and applying security patches without delay. No alternative mitigations or workarounds are specified in the advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-31T15:40:57.361Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspusep2026.html","vendor":"Oracle"}]
Threat ID: 6aa9a84e55bf5e2cf55381e1
Added to database: 09/15/2026, 20:19:26 UTC
Last enriched: 09/15/2026, 23:11:03 UTC
Last updated: 09/16/2026, 01:49:43 UTC
Views: 5
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