CVE-2026-83226 Auth bypass in Siebel CRM Deployment
A low-privileged attacker can compromise Siebel CRM Deployment via HTTP, leading to full system takeover.
- 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-2026-83226?
CVE-2026-83226 is a high-severity authentication bypass vulnerability in Oracle Corporation Siebel CRM Deployment, 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 Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported versions that are affected are 17.0-26.7. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Siebel CRM Deployment. Successful attacks of this vulnerability can result in takeover of Siebel CRM Deployment. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H).
Weakness: CWE-284
Which versions are affected by CVE-2026-83226?
How do I fix CVE-2026-83226?
No fix has been published for CVE-2026-83226 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-2026-83226 being exploited?
There is no known exploitation of CVE-2026-83226 in the wild and no public exploit code.
Sources
Also known as GHSA-99h4-fr77-wx74.