Vulnerability DatabaseCVE-2026-83439
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CVE-2026-83439
Published:September 15, 2026
Updated:October 22, 2026
Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-security-providers-idcs-mapper). Supported versions that are affected are 3.0.0-3.2.20 and 4.0.0-4.5.4. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Helidon accessible data as well as unauthorized access to critical data or complete access to all Helidon accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).
Affected Packages
https://github.com/helidon-io/helidon.git (GITHUB):
Affected version(s) =27.0.0-M1 <27.0.0
Fix Suggestion:
Update to version 27.0.0
https://github.com/helidon-io/helidon.git (GITHUB):
Affected version(s) >=4.0.0-ALPHA1 <4.5.5
Fix Suggestion:
Update to version 4.5.5
https://github.com/helidon-io/helidon.git (GITHUB):
Affected version(s) >=3.0.0-M1 <3.2.21
Fix Suggestion:
Update to version 3.2.21
io.helidon.security.providers:helidon-security-providers-idcs-mapper (JAVA):
Affected version(s) >=3.0.0-M1 <3.2.21
Fix Suggestion:
Update to version 3.2.21
io.helidon.security.providers:helidon-security-providers-idcs-mapper (JAVA):
Affected version(s) =27.0.0-M1 <27.0.0
Fix Suggestion:
Update to version 27.0.0
io.helidon.security.providers:helidon-security-providers-idcs-mapper (JAVA):
Affected version(s) >=4.0.0-ALPHA1 <4.5.5
Fix Suggestion:
Update to version 4.5.5
Related Resources (2)
https://nvd.nist.gov/vuln/detail/CVE-2026-83439
https://www.oracle.com/security-alerts/cspusep2026.html
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CVSS v4
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
Improper Access Control
CWE-284
EPSS
Base Score:
0.36