CVE-2026-73915: 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
CVE-2026-73915 is a vulnerability in Oracle Helidon versions 4.0.0 through 4.4.1 and version 4.5.0 that allows an unauthenticated attacker with network access via HTTP to cause a denial of service by hanging or crashing the Helidon server. The vulnerability affects the Imperative Web Server component and has a CVSS 3.1 base score of 7.5, indicating a high severity impact on availability.
AI Analysis
Technical Summary
This vulnerability in Oracle Helidon (Imperative Web Server component) allows an unauthenticated attacker to cause a hang or frequent crash of the Helidon server via network access over HTTP, resulting in a complete denial of service. The affected versions are 4.0.0 through 4.4.1 inclusive, and 4.5.0. 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 attack complexity, no privileges or user interaction required, and high impact on availability only. Oracle has included this vulnerability in their August 2026 Critical Security Patch Update advisory, which addresses numerous vulnerabilities across multiple products including Helidon.
Potential Impact
Successful exploitation allows an unauthenticated remote attacker to cause a denial of service by hanging or repeatedly crashing the Helidon server, impacting availability. There is no impact on confidentiality or integrity.
Mitigation Recommendations
Oracle has released security patches as part of their August 2026 Critical Security Patch Update that address this vulnerability. Customers are strongly advised to apply the available patches promptly to affected Helidon versions. No alternative mitigations or workarounds are specified. Staying on actively supported versions and applying Oracle patches without delay is recommended.
CVE-2026-73915: 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
CVE-2026-73915 is a vulnerability in Oracle Helidon versions 4.0.0 through 4.4.1 and version 4.5.0 that allows an unauthenticated attacker with network access via HTTP to cause a denial of service by hanging or crashing the Helidon server. The vulnerability affects the Imperative Web Server component and has a CVSS 3.1 base score of 7.5, indicating a high severity impact on availability.
CVSS v3.1
Score 7.5high
Affected software
Oracle Corporation
Helidon
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Oracle Helidon (Imperative Web Server component) allows an unauthenticated attacker to cause a hang or frequent crash of the Helidon server via network access over HTTP, resulting in a complete denial of service. The affected versions are 4.0.0 through 4.4.1 inclusive, and 4.5.0. 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 attack complexity, no privileges or user interaction required, and high impact on availability only. Oracle has included this vulnerability in their August 2026 Critical Security Patch Update advisory, which addresses numerous vulnerabilities across multiple products including Helidon.
Potential Impact
Successful exploitation allows an unauthenticated remote attacker to cause a denial of service by hanging or repeatedly crashing the Helidon server, impacting availability. There is no impact on confidentiality or integrity.
Mitigation Recommendations
Oracle has released security patches as part of their August 2026 Critical Security Patch Update that address this vulnerability. Customers are strongly advised to apply the available patches promptly to affected Helidon versions. No alternative mitigations or workarounds are specified. Staying on actively supported versions and applying Oracle patches without delay is recommended.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.888Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]
Threat ID: 6a84ccebc6e8be0332c396e6
Added to database: 08/18/2026, 21:21:47 UTC
Last enriched: 09/11/2026, 10:48:40 UTC
Last updated: 10/02/2026, 02:46:06 UTC
Views: 55
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