CVE-2026-83381
Description
A flaw was found in OpenJDK. An unauthenticated remote attacker can exploit this vulnerability over a network by supplying crafted input to Application Programming Interfaces (APIs) within the Security component. Successful exploitation can result in unauthorized read and modification access to a subset of data accessible to the application.
Statement
This vulnerability is rated as having a Moderate impact because exploitation demands high complexity, requiring an attacker to target applications that expose specific SASL authentication endpoints or process untrusted authentication exchange data. In standard Red Hat Enterprise Linux server environments, Java services do not inherently expose vulnerable interfaces unless custom applications explicitly invoke the affected Security subsystem APIs. Exploitation cannot achieve full system takeover or complete service denial, restricting the potential consequence to unauthorized read or modification of a limited subset of application data.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4.8 | N/A | 4.8 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | High | N/A | High |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | Low | N/A | Low |
| Integrity Impact | Low | N/A | Low |
| Availability Impact | None | N/A | None |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
cve.org: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Understanding the Weakness (CWE)
Access Control
Technical Impact: Bypass Protection Mechanism
An incorrect implementation may allow authentication to be bypassed.
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