CVE-2026-70949 Auth bypass in Siebel CRM Deployment

High 8.8 Published 18 Aug 2026 Updated 20 Aug 2026

A low-privileged attacker can exploit this vulnerability to take over the Siebel CRM Deployment system via network access.

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-2026-70949?

CVE-2026-70949 is a high-severity authentication bypass vulnerability in Oracle Siebel Crm, published on 18 Aug 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 17.0-26.6. Easily exploitable 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 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-2026-70949?

It affects 1 product.

Products include Oracle Siebel Crm.

How do I fix CVE-2026-70949?

No fix has been published for CVE-2026-70949 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-2026-70949 being exploited?

There is no known exploitation of CVE-2026-70949 in the wild and no public exploit code.

All Oracle Siebel Crm vulnerabilities

Sources

Also known as GHSA-wjcx-9jg8-xjw3.