CVE-2026-71153: 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-2026-71153 is a high-severity vulnerability in Oracle Helidon versions 1.0.0 through 1.4.19 and version 1.4.20. It allows an unauthenticated attacker with network access via HTTP to cause a denial of service by hanging or crashing the Helidon server. The vulnerability impacts availability but does not affect confidentiality or integrity.
AI Analysis
Technical Summary
This vulnerability affects the Helidon product of Oracle Fusion Middleware, specifically the Imperative Web Server component. It is easily exploitable by unauthenticated attackers over the network via HTTP, enabling them to cause a hang or frequent crash of the Helidon service, resulting in a complete denial of service. The CVSS 3.1 base score is 7.5, reflecting high impact on availability with no impact on confidentiality or integrity. The affected versions are from 1.0.0 up to and including 1.4.19, as well as version 1.4.20. Oracle has published a Critical Security Patch Update advisory that includes patches for this vulnerability among many others, strongly recommending customers to apply patches promptly.
Potential Impact
Successful exploitation results in denial of service by causing the Helidon server to hang or crash repeatedly. There is no impact on confidentiality or integrity. The vulnerability can be exploited remotely without authentication via HTTP.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of its August 2026 Critical Security Patch Update. Customers are strongly advised to apply the available patches without delay to remediate this issue. No alternative mitigations or workarounds are specified in the vendor advisory.
CVE-2026-71153: 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-2026-71153 is a high-severity vulnerability in Oracle Helidon versions 1.0.0 through 1.4.19 and version 1.4.20. It allows an unauthenticated attacker with network access via HTTP to cause a denial of service by hanging or crashing the Helidon server. The vulnerability impacts availability but does not affect confidentiality or integrity.
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 affects the Helidon product of Oracle Fusion Middleware, specifically the Imperative Web Server component. It is easily exploitable by unauthenticated attackers over the network via HTTP, enabling them to cause a hang or frequent crash of the Helidon service, resulting in a complete denial of service. The CVSS 3.1 base score is 7.5, reflecting high impact on availability with no impact on confidentiality or integrity. The affected versions are from 1.0.0 up to and including 1.4.19, as well as version 1.4.20. Oracle has published a Critical Security Patch Update advisory that includes patches for this vulnerability among many others, strongly recommending customers to apply patches promptly.
Potential Impact
Successful exploitation results in denial of service by causing the Helidon server to hang or crash repeatedly. There is no impact on confidentiality or integrity. The vulnerability can be exploited remotely without authentication via HTTP.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of its August 2026 Critical Security Patch Update. Customers are strongly advised to apply the available patches without delay to remediate this issue. No alternative mitigations or workarounds are specified in the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-04T22:06:34.620Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]
Threat ID: 6a84ccd9c6e8be0332c391ad
Added to database: 08/18/2026, 21:21:29 UTC
Last enriched: 09/11/2026, 11:32:24 UTC
Last updated: 10/02/2026, 02:46:06 UTC
Views: 41
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