# CVE-2026-87166: Oracle E-Business Suite Purchasing privilege escalation

Source: https://junglewise.ai/threats/cve-2026-87166-oracle-e-business-suite-purchasing-privilege-escalation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-87166 · Severity: high · CVSS 8.1 · Published 2026-09-15

Oracle E-Business Suite's Purchasing module is a core financial application used to manage purchase orders, vendor relationships, and procurement workflows. A vulnerability in this component allows low-privileged users with network access to view, create, modify, or delete sensitive procurement data and financial records that should be restricted. Exploitation could lead to unauthorized financial transactions, data theft, or system compromise.

Technologies: [Oracle E-Business Suite Purchasing](https://junglewise.ai/threats/technologies/e-business-suite-purchasing), [Oracle Purchasing](https://junglewise.ai/threats/technologies/purchasing). Vendors: [Oracle](https://junglewise.ai/threats/vendors/oracle).

## Quick answers

**Is CVE-2026-87166 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-87166 being exploited in the wild.

**How severe is CVE-2026-87166?** High severity, with a CVSS score of 8.1, published 15 September 2026.

**Which products and versions are affected?** Oracle E-Business Suite Purchasing 12.2.3–12.2.15.

**Is there a fix for CVE-2026-87166?** 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-2026-87166 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-87166?** Check whether you run Oracle E-Business Suite Purchasing or Oracle Purchasing 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 insufficient access control issue in the Oracle E-Business Suite Purchasing product (versions 12.2.3–12.2.15). It is exploitable by low-privileged, authenticated attackers over the network via HTTP without user interaction required. The vulnerability allows unauthorized creation, deletion, and modification of critical purchasing data, as well as unauthorized access to sensitive financial information. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N) indicates network accessibility, low attack complexity, and high impact to confidentiality and integrity. Patch status and details are not publicly available at this time.

## Affected products

- Oracle E-Business Suite Purchasing 12.2.3–12.2.15

## Timeline

- 2026-09-15: disclosed

## References

- [https://www.oracle.com/security-alerts/cspusep2026.html](https://www.oracle.com/security-alerts/cspusep2026.html)

## Related threats

- [Oracle E-Business Suite Purchasing authentication bypass via HTTP](https://junglewise.ai/threats/cve-2026-91511-vulnerability-in-the-oracle-purchasing-product-of-oracle-e)
- [Oracle E-Business Suite Purchasing unauthorized data access in PO View Document](https://junglewise.ai/threats/cve-2026-101559-vulnerability-in-the-oracle-purchasing-product-of-oracle-e)
- [Oracle E-Business Suite Purchasing Approvals unauthorized data access](https://junglewise.ai/threats/cve-2026-101558-vulnerability-in-the-oracle-purchasing-product-of-oracle-e)
- [Oracle E-Business Suite Purchasing privilege escalation](https://junglewise.ai/threats/cve-2026-101557-vulnerability-in-the-oracle-purchasing-product-of-oracle-e)
- [Oracle E-Business Suite Purchasing unauthorized data access](https://junglewise.ai/threats/cve-2026-87265-oracle-e-business-suite-purchasing-unauthorized-data-access)