CVE-2026-73909: Difficult to exploit 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-2026-73909 is a medium severity vulnerability in Oracle Helidon version 3.2.19. It allows an unauthenticated attacker with network access via HTTP to potentially gain unauthorized access to critical or all accessible data within Helidon. The vulnerability is difficult to exploit and impacts confidentiality without affecting integrity or availability. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update, which addresses it among many other issues.
AI Analysis
Technical Summary
This vulnerability affects Oracle Helidon, specifically version 3.2.19, within the Imperative Web Server component. It permits an unauthenticated attacker with network access over HTTP to compromise the system, leading to unauthorized access to critical or all accessible data. The CVSS 3.1 base score is 5.9, reflecting a network attack vector with high attack complexity, no privileges required, no user interaction, and a high confidentiality impact but no integrity or availability impact. Oracle's August 2026 Critical Security Patch Update includes patches addressing this vulnerability, indicating that a fix is available.
Potential Impact
Successful exploitation can result in unauthorized access to critical or all data accessible through Helidon 3.2.19. The confidentiality of sensitive information is at risk, but there is no impact on data integrity or system availability. The vulnerability requires network access via HTTP and is difficult to exploit, which somewhat limits the risk.
Mitigation Recommendations
Oracle has released patches for this vulnerability as part of the August 2026 Critical Security Patch Update. Users of Helidon version 3.2.19 should apply the relevant patches promptly to remediate this issue. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. No alternative mitigations or workarounds are specified in the advisory.
CVE-2026-73909: Difficult to exploit 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-2026-73909 is a medium severity vulnerability in Oracle Helidon version 3.2.19. It allows an unauthenticated attacker with network access via HTTP to potentially gain unauthorized access to critical or all accessible data within Helidon. The vulnerability is difficult to exploit and impacts confidentiality without affecting integrity or availability. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update, which addresses it among many other issues.
CVSS v3.1
Score 5.9medium
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Oracle Helidon, specifically version 3.2.19, within the Imperative Web Server component. It permits an unauthenticated attacker with network access over HTTP to compromise the system, leading to unauthorized access to critical or all accessible data. The CVSS 3.1 base score is 5.9, reflecting a network attack vector with high attack complexity, no privileges required, no user interaction, and a high confidentiality impact but no integrity or availability impact. Oracle's August 2026 Critical Security Patch Update includes patches addressing this vulnerability, indicating that a fix is available.
Potential Impact
Successful exploitation can result in unauthorized access to critical or all data accessible through Helidon 3.2.19. The confidentiality of sensitive information is at risk, but there is no impact on data integrity or system availability. The vulnerability requires network access via HTTP and is difficult to exploit, which somewhat limits the risk.
Mitigation Recommendations
Oracle has released patches for this vulnerability as part of the August 2026 Critical Security Patch Update. Users of Helidon version 3.2.19 should apply the relevant patches promptly to remediate this issue. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. No alternative mitigations or workarounds are specified in the advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.887Z
- 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: 6a84ccebc6e8be0332c396da
Added to database: 08/18/2026, 21:21:47 UTC
Last enriched: 08/18/2026, 21:51:34 UTC
Last updated: 08/18/2026, 22:29:29 UTC
Views: 2
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