# CVE-2026-46889: Oracle Siebel CRM improper access control in Siebel Apps - Marketing

Source: https://junglewise.ai/threats/cve-2026-46889-oracle-siebel-crm-improper-access-control-in-siebel-apps  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-17. Updated: 2026-06-18  
License: CC BY 4.0 with a link back

CVE-2026-46889 · Severity: critical · CVSS 9.8 · Published 2026-06-17

A critical vulnerability exists in Oracle Siebel Apps - Marketing, a component of the Siebel CRM suite used for managing marketing campaigns and customer data. An unauthenticated attacker can exploit this flaw over the network to gain full control of the application. This could lead to the theft of sensitive customer information, unauthorized modification of marketing data, or a complete disruption of marketing operations.

Technologies: [Oracle Siebel Apps - Marketing](https://junglewise.ai/threats/technologies/siebel-apps-marketing). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-46889 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-46889 being exploited in the wild.

**How severe is CVE-2026-46889?** Critical severity, with a CVSS score of 9.8, published 17 June 2026.

**Which products and versions are affected?** Oracle Siebel Apps - Marketing 17.0-26.5.

**Is there a fix for CVE-2026-46889?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-46889 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-46889?** Check whether you run Oracle Siebel Apps - Marketing at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This vulnerability is classified as Improper Access Control (CWE-284) within the Marketing component of Oracle Siebel CRM. It is remotely exploitable via HTTP without the need for authentication or user interaction (CVSS 9.8). Successful exploitation allows an attacker to achieve a total compromise of the Siebel Apps - Marketing environment, impacting confidentiality, integrity, and availability. The issue affects versions 17.0 through 26.5. Oracle has addressed this in the June 2026 Critical Patch Update.

## Affected products

- Oracle Siebel Apps - Marketing 17.0-26.5

## Timeline

- 2026-06-17: disclosed: Initial disclosure by Oracle
- 2026-06-17: advisory: NVD entry published

## References

- [https://www.oracle.com/security-alerts/cspujun2026.html](https://www.oracle.com/security-alerts/cspujun2026.html)

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