CVE-2026-87289: 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 hang or frequently repeatable crash (complete DOS) of Helidon. in Oracle Corporation Helidon
A vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webserver-static-content) affects versions 4.0.0 through 4.5.4. This vulnerability allows an unauthenticated attacker with network access via HTTP to cause a denial of service (DoS) by hanging or crashing the Helidon service. The CVSS 3.1 base score is 7.5, indicating a high severity impact on availability.
AI Analysis
Technical Summary
CVE-2026-87289 is a vulnerability in the helidon-webserver-static-content component of Oracle Fusion Middleware's Helidon product. It affects supported versions 4.0.0 through 4.5.4. The flaw allows an unauthenticated attacker with network access via HTTP to cause a hang or repeated crash of the Helidon service, resulting in a denial of service condition. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, reflecting network attack vector, low complexity, no privileges or user interaction required, and high impact on availability only.
Potential Impact
Successful exploitation results in denial of service by causing the Helidon service to hang or crash repeatedly. There is no impact on confidentiality or integrity. The vulnerability is easily exploitable remotely without authentication.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of the September 2026 Critical Security Patch Update. Affected customers are strongly advised to apply the official Oracle patches without delay. The vendor advisory confirms that patches are available for Helidon versions 4.0.0 through 4.5.4. No additional mitigation steps are indicated beyond applying the official patch.
CVE-2026-87289: 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 hang or frequently repeatable crash (complete DOS) of Helidon. in Oracle Corporation Helidon
Description
A vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webserver-static-content) affects versions 4.0.0 through 4.5.4. This vulnerability allows an unauthenticated attacker with network access via HTTP to cause a denial of service (DoS) by hanging or crashing the Helidon service. The CVSS 3.1 base score is 7.5, indicating a high severity impact on availability.
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-87289 is a vulnerability in the helidon-webserver-static-content component of Oracle Fusion Middleware's Helidon product. It affects supported versions 4.0.0 through 4.5.4. The flaw allows an unauthenticated attacker with network access via HTTP to cause a hang or repeated crash of the Helidon service, resulting in a denial of service condition. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, reflecting network attack vector, low complexity, no privileges or user interaction required, and high impact on availability only.
Potential Impact
Successful exploitation results in denial of service by causing the Helidon service to hang or crash repeatedly. There is no impact on confidentiality or integrity. The vulnerability is easily exploitable remotely without authentication.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of the September 2026 Critical Security Patch Update. Affected customers are strongly advised to apply the official Oracle patches without delay. The vendor advisory confirms that patches are available for Helidon versions 4.0.0 through 4.5.4. No additional mitigation steps are indicated beyond applying the official patch.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-683w-v5xf-4gr4
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-87289"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aaa07d855bf5e2cf5ea2d23
Added to database: 09/16/2026, 03:07:04 UTC
Last enriched: 09/16/2026, 03:18:53 UTC
Last updated: 09/16/2026, 05:01:23 UTC
Views: 1
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