CVE-2026-73927: 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-2026-73927 is a high-severity vulnerability in Oracle Helidon versions 3.0.0 through 3.2.19 and 3.2.20. 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. An unauthenticated attacker with network access via HTTP can exploit this flaw to cause a hang or a frequently repeatable crash, resulting in a complete denial of service (DoS) condition. The CVSS 3.1 base score is 7.5, reflecting the high impact on availability with no impact on confidentiality or integrity. The affected versions are 3.0.0 through 3.2.19 and 3.2.20. Oracle has included this vulnerability in their August 2026 Critical Security Patch Update, which contains numerous fixes across Oracle products.
Potential Impact
Successful exploitation results in a denial of service condition by causing Helidon 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 the August 2026 Critical Security Patch Update. Users should apply the relevant patches promptly to remediate this issue. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. Patch status is confirmed as fixed in the August 2026 CSPU. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-73927: 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-2026-73927 is a high-severity vulnerability in Oracle Helidon versions 3.0.0 through 3.2.19 and 3.2.20. 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. An unauthenticated attacker with network access via HTTP can exploit this flaw to cause a hang or a frequently repeatable crash, resulting in a complete denial of service (DoS) condition. The CVSS 3.1 base score is 7.5, reflecting the high impact on availability with no impact on confidentiality or integrity. The affected versions are 3.0.0 through 3.2.19 and 3.2.20. Oracle has included this vulnerability in their August 2026 Critical Security Patch Update, which contains numerous fixes across Oracle products.
Potential Impact
Successful exploitation results in a denial of service condition by causing Helidon 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 the August 2026 Critical Security Patch Update. Users should apply the relevant patches promptly to remediate this issue. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. Patch status is confirmed as fixed in the August 2026 CSPU. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.890Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]
Threat ID: 6a84cceec6e8be0332c397f8
Added to database: 08/18/2026, 21:21:50 UTC
Last enriched: 09/11/2026, 10:47:03 UTC
Last updated: 10/02/2026, 02:46:06 UTC
Views: 49
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