CVE-2026-21959 Missing authorization in Oracle Workflow
High-privileged attackers can access critical Oracle Workflow data via HTTP due to missing authorization checks.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-21959?
CVE-2026-21959 is a medium-severity missing authorization vulnerability in Oracle Workflow, published on 20 Jan 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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).
Weakness: CWE-284
Which versions are affected by CVE-2026-21959?
It affects 1 product.
Products include Oracle Workflow.
How do I fix CVE-2026-21959?
No fix has been published for CVE-2026-21959 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-21959 being exploited?
There is no known exploitation of CVE-2026-21959 in the wild and no public exploit code.
Other vulnerabilities in Oracle Workflow
Sources
Also known as GHSA-mmgj-xpx2-f5v4.