CVE-2026-83209 Auth bypass in Siebel CRM Development
A low-privileged attacker can exploit a workflow vulnerability in Siebel CRM Development to take over the application via HTTP.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-83209?
CVE-2026-83209 is a high-severity authentication bypass vulnerability in Oracle Corporation Siebel CRM Development, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Vulnerability in the Siebel CRM Development product of Oracle Siebel CRM (component: Workflow). Supported versions that are affected are 17.0-26.7. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel CRM Development. Successful attacks of this vulnerability can result in takeover of Siebel CRM Development. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
Weakness: CWE-284
Which versions are affected by CVE-2026-83209?
How do I fix CVE-2026-83209?
No fix has been published for CVE-2026-83209 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-83209 being exploited?
There is no known exploitation of CVE-2026-83209 in the wild and no public exploit code.
Sources
Also known as GHSA-f27x-8xpr-53xw.