CVE-2026-73893: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data as well as unauthorized read access to a subset of Helidon accessible data. in Oracle Corporation Helidon
CVE-2026-73893 is a vulnerability in Oracle Helidon version 4.5.0 that allows an unauthenticated attacker with network access via HTTP to perform unauthorized read and write operations on accessible data. The vulnerability impacts confidentiality and integrity but does not affect availability. It has a CVSS 3.1 base score of 6.5, indicating a medium severity level. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update advisory, which provides patches for affected products including Helidon 4.5.0 and later versions.
AI Analysis
Technical Summary
This vulnerability affects Oracle Helidon 4.5.0, specifically the Imperative Web Server component. An unauthenticated attacker with network access via HTTP can exploit this flaw to gain unauthorized update, insert, delete, and read access to certain Helidon accessible data. The CVSS 3.1 vector indicates the attack requires no privileges or user interaction and has low complexity. The impact affects confidentiality and integrity but not availability. Oracle's August 2026 Critical Security Patch Update advisory lists Helidon 4.5.0 among affected versions and provides patches in subsequent versions.
Potential Impact
Successful exploitation allows unauthorized modification (update, insert, delete) and unauthorized reading of some Helidon accessible data, compromising confidentiality and integrity. There is no impact on system availability. The vulnerability can be exploited remotely without authentication or user interaction, increasing risk.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of the August 2026 Critical Security Patch Update. Users of Helidon 4.5.0 should apply the available patches promptly to remediate the issue. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. Patch status is confirmed by the vendor advisory. No alternative mitigations or workarounds are specified.
CVE-2026-73893: Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data as well as unauthorized read access to a subset of Helidon accessible data. in Oracle Corporation Helidon
Description
CVE-2026-73893 is a vulnerability in Oracle Helidon version 4.5.0 that allows an unauthenticated attacker with network access via HTTP to perform unauthorized read and write operations on accessible data. The vulnerability impacts confidentiality and integrity but does not affect availability. It has a CVSS 3.1 base score of 6.5, indicating a medium severity level. Oracle has included this vulnerability in its August 2026 Critical Security Patch Update advisory, which provides patches for affected products including Helidon 4.5.0 and later versions.
CVSS v3.1
Score 6.5medium
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Oracle Helidon 4.5.0, specifically the Imperative Web Server component. An unauthenticated attacker with network access via HTTP can exploit this flaw to gain unauthorized update, insert, delete, and read access to certain Helidon accessible data. The CVSS 3.1 vector indicates the attack requires no privileges or user interaction and has low complexity. The impact affects confidentiality and integrity but not availability. Oracle's August 2026 Critical Security Patch Update advisory lists Helidon 4.5.0 among affected versions and provides patches in subsequent versions.
Potential Impact
Successful exploitation allows unauthorized modification (update, insert, delete) and unauthorized reading of some Helidon accessible data, compromising confidentiality and integrity. There is no impact on system availability. The vulnerability can be exploited remotely without authentication or user interaction, increasing risk.
Mitigation Recommendations
Oracle has released security patches addressing this vulnerability as part of the August 2026 Critical Security Patch Update. Users of Helidon 4.5.0 should apply the available patches promptly to remediate the issue. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. Patch status is confirmed by the vendor advisory. No alternative mitigations or workarounds are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- oracle
- Date Reserved
- 2026-08-13T18:41:45.884Z
- 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: 6a84cce5c6e8be0332c3959d
Added to database: 08/18/2026, 21:21:41 UTC
Last enriched: 08/18/2026, 22:06:05 UTC
Last updated: 08/18/2026, 22:49:32 UTC
Views: 2
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