CVE-2026-47036 Auth bypass in Siebel CRM Development

Critical 9.8 Published 21 Jul 2026 Updated 25 Jul 2026

Unauthenticated attackers can compromise Siebel CRM Development via HTTP, leading to full system takeover.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-47036?

CVE-2026-47036 is a critical authentication bypass vulnerability in Oracle Siebel Crm, published on 21 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Vulnerability in the Siebel CRM Development product of Oracle Siebel CRM (component: Siebel Approval Manager). Supported versions that are affected are 17.0-26.3. Easily exploitable vulnerability allows unauthenticated 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 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Weakness: CWE-306

Which versions are affected by CVE-2026-47036?

It affects 1 product.

Products include Oracle Siebel Crm.

How do I fix CVE-2026-47036?

No fix has been published for CVE-2026-47036 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-2026-47036 being exploited?

There is no known exploitation of CVE-2026-47036 in the wild and no public exploit code.

All Oracle Siebel Crm vulnerabilities

Sources

Also known as GHSA-gfcm-5mp4-vvxw.