CVE-2026-73889: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Helidon accessible data. in Oracle Corporation Helidon
CVE-2026-73889 is a medium severity vulnerability in Oracle Helidon versions 4.0.0 through 4.4.1 and version 4.5.0. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized read access to some data accessible through Helidon. The vulnerability affects the Imperative Web Server component of Oracle Fusion Middleware. The CVSS 3.1 base score is 5.3, reflecting a confidentiality impact without integrity or availability impact. Oracle has published a Critical Security Patch Update advisory that includes fixes for this and other vulnerabilities.
AI Analysis
Technical Summary
This vulnerability in Oracle Helidon (Imperative Web Server component) allows an unauthenticated attacker with network access over HTTP to read a subset of accessible data without authorization. It affects supported versions 4.0.0 through 4.4.1 and 4.5.0. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, indicating network attack vector, low attack complexity, no privileges or user interaction required, and limited confidentiality impact. Oracle's August 2026 Critical Security Patch Update advisory includes patches addressing this vulnerability among others.
Potential Impact
Successful exploitation results in unauthorized read access to some data accessible via Helidon, potentially exposing sensitive information. There is no impact on integrity or availability. The vulnerability is exploitable remotely without authentication, increasing risk if unpatched.
Mitigation Recommendations
Oracle has released security patches as part of the August 2026 Critical Security Patch Update that address this vulnerability. Users should apply these official patches promptly to remediate the issue. No alternative mitigations or temporary fixes are indicated by the vendor advisory.
CVE-2026-73889: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Helidon accessible data. in Oracle Corporation Helidon
Description
CVE-2026-73889 is a medium severity vulnerability in Oracle Helidon versions 4.0.0 through 4.4.1 and version 4.5.0. It allows an unauthenticated attacker with network access via HTTP to gain unauthorized read access to some data accessible through Helidon. The vulnerability affects the Imperative Web Server component of Oracle Fusion Middleware. The CVSS 3.1 base score is 5.3, reflecting a confidentiality impact without integrity or availability impact. Oracle has published a Critical Security Patch Update advisory that includes fixes for this and other vulnerabilities.
CVSS v3.1
Score 5.3medium
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 with network access over HTTP to read a subset of accessible data without authorization. It affects supported versions 4.0.0 through 4.4.1 and 4.5.0. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, indicating network attack vector, low attack complexity, no privileges or user interaction required, and limited confidentiality impact. Oracle's August 2026 Critical Security Patch Update advisory includes patches addressing this vulnerability among others.
Potential Impact
Successful exploitation results in unauthorized read access to some data accessible via Helidon, potentially exposing sensitive information. There is no impact on integrity or availability. The vulnerability is exploitable remotely without authentication, increasing risk if unpatched.
Mitigation Recommendations
Oracle has released security patches as part of the August 2026 Critical Security Patch Update that address this vulnerability. Users should apply these official patches promptly to remediate the issue. No alternative mitigations or temporary fixes are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.883Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.oracle.com/security-alerts/cspuaug2026.html","vendor":"Oracle"}]
Threat ID: 6a84cce5c6e8be0332c39595
Added to database: 08/18/2026, 21:21:41 UTC
Last enriched: 09/11/2026, 11:04:30 UTC
Last updated: 10/03/2026, 02:46:06 UTC
Views: 54
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