What is CVE-2026-21959?

CVE-2026-21959 is a medium-severity vulnerability in Oracle Workflow, classified under Improper Access Control. CVSS score: 4.9/10. Published 2026-01-20.

How severe is CVE-2026-21959?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in Oracle Workflow

CVE-2026-21959

Vulnerability in the Oracle Workflow product of Oracle E-Business Suite (component: Workflow Loader). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle Workflow. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Workflow accessible data. CVSS 3.1 Base Score 4.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N).

EPSS: 0.003 (24.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Oracle Workflow
Oracle Corporation Workflow — versions 12.2.3

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

secalert_us@oracle.com (vendor-advisory, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-21959?: CVE-2026-21959 is a medium-severity vulnerability in Oracle Workflow, classified under Improper Access Control. CVSS score: 4.9/10. Published 2026-01-20.
How severe is CVE-2026-21959?: Medium severity. CVSS v3 base score is 4.9 out of 10.