CVE-2026-91445: Oracle Siebel CRM End User unauthorized data access in Communications Panel

CVE-2026-91445 · Severity: high · CVSS 8.2 · Published 2026-10-20

Oracle Siebel CRM End User is a customer relationship management platform used to manage business interactions. An unauthenticated attacker on the network can exploit an easily exploitable vulnerability in the Communications Panel component to gain unauthorized read access to critical customer and business data, and limited ability to modify or delete data—without needing valid credentials.

Technologies: Oracle Siebel CRM End User. Vendors: Oracle.

Quick answers

Is CVE-2026-91445 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-91445 being exploited in the wild.
How severe is CVE-2026-91445?
High severity, with a CVSS score of 8.2, published 20 October 2026.
Which products and versions are affected?
Oracle Siebel CRM End User 17.0 through 26.9.
Is there a fix for CVE-2026-91445?
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-2026-91445 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-91445?
Check whether you run Oracle Siebel CRM End User 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

The vulnerability is an authorization bypass in the Communications Panel/Dashboard component of Siebel CRM End User, allowing unauthenticated network-based HTTP access to read sensitive data and perform unauthorized modifications. The flaw requires no user interaction and affects versions 17.0 through 26.9. An attacker gains read access to critical CRM data and limited write/delete capabilities across multiple data records.

Affected products

  • Oracle Siebel CRM End User 17.0 through 26.9

Timeline

  • 2026-10-20: advisory

References

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