CVE-2026-73938: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Helidon accessible data. in Oracle Corporation Helidon
CVE-2026-73938 is a high-severity vulnerability in Oracle Helidon version 4.5.0 that allows an unauthenticated attacker with network access via HTTP to gain unauthorized access to critical or all accessible data. The vulnerability has a CVSS 3.1 base score of 7.5, indicating a significant confidentiality impact without requiring privileges or user interaction. Oracle has included Helidon 4.5.0 in its August 2026 Critical Security Patch Update advisory, indicating that patches addressing this and other vulnerabilities are available.
AI Analysis
Technical Summary
This vulnerability affects Oracle Helidon 4.5.0, specifically in the Imperative Web Server component. It allows an unauthenticated attacker with network access over HTTP to compromise the system, resulting in unauthorized access to critical or all data accessible by Helidon. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) confirms that the attack requires no privileges or user interaction and impacts confidentiality only. Oracle's August 2026 Critical Security Patch Update advisory lists Helidon 4.5.0 among affected products and provides patch availability documentation, indicating that a fix is available.
Potential Impact
Successful exploitation can lead to unauthorized access to critical or all data accessible through Helidon 4.5.0, compromising confidentiality. There is no impact on integrity or availability as per the CVSS vector. The vulnerability is remotely exploitable without authentication, increasing risk exposure.
Mitigation Recommendations
Oracle has released patches for Helidon 4.5.0 as part of the August 2026 Critical Security Patch Update. Users should apply the available security patches promptly to remediate this vulnerability. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. Patch status is confirmed by the vendor advisory.
CVE-2026-73938: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Helidon accessible data. in Oracle Corporation Helidon
Description
CVE-2026-73938 is a high-severity vulnerability in Oracle Helidon version 4.5.0 that allows an unauthenticated attacker with network access via HTTP to gain unauthorized access to critical or all accessible data. The vulnerability has a CVSS 3.1 base score of 7.5, indicating a significant confidentiality impact without requiring privileges or user interaction. Oracle has included Helidon 4.5.0 in its August 2026 Critical Security Patch Update advisory, indicating that patches addressing this and other vulnerabilities are available.
CVSS v3.1
Score 7.5high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Oracle Helidon 4.5.0, specifically in the Imperative Web Server component. It allows an unauthenticated attacker with network access over HTTP to compromise the system, resulting in unauthorized access to critical or all data accessible by Helidon. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) confirms that the attack requires no privileges or user interaction and impacts confidentiality only. Oracle's August 2026 Critical Security Patch Update advisory lists Helidon 4.5.0 among affected products and provides patch availability documentation, indicating that a fix is available.
Potential Impact
Successful exploitation can lead to unauthorized access to critical or all data accessible through Helidon 4.5.0, compromising confidentiality. There is no impact on integrity or availability as per the CVSS vector. The vulnerability is remotely exploitable without authentication, increasing risk exposure.
Mitigation Recommendations
Oracle has released patches for Helidon 4.5.0 as part of the August 2026 Critical Security Patch Update. Users should apply the available security patches promptly to remediate this vulnerability. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. Patch status is confirmed by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.892Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]
Threat ID: 6a84ccf0c6e8be0332c39845
Added to database: 08/18/2026, 21:21:52 UTC
Last enriched: 08/18/2026, 21:34:30 UTC
Last updated: 08/18/2026, 21:34:30 UTC
Views: 4
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