Auth bypass in Oracle Identity Manager Connector

CVE-2026-34288

Vulnerability in the Oracle Identity Manager Connector product of Oracle Fusion Middleware (component: Core). The supported version that is affected is 12.2.1.4.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Identity Manager Connector. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Identity Manager Connector accessible data. CVSS 3.1 Base Score 5.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (23.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-34288: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.001

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-34288?
CVE-2026-34288 is a medium-severity vulnerability in Oracle Identity Manager Connector, classified under Missing Authentication for Critical Function. CVSS score: 5.9/10. Published 2026-04-21.
How severe is CVE-2026-34288?
Medium severity. CVSS v3 base score is 5.9 out of 10.