Oracle addresses 35 CVEs in its May 2026 Critical Security Patch Update with 35 patches, including 11 critical updates.
Key Takeaways
- The May 2026 Critical Security Patch Update (CSPU) contains fixes for 35 unique CVEs in 35 security updates
- 11 issues (31.4% of all patches) were assigned a critical severity rating
- Oracle E-Business Suite received the highest number of patches at 12, accounting for 34.3% of all patches
Background
On May 28, Oracle released its Critical Security Patch Update (CSPU) for May 2026. Beginning in May 2026, Oracle introduced CSPUs as a monthly release cycle that sits between the larger quarterly Critical Patch Updates (CPUs), addressing a focused set of high-severity issues on a faster cadence. This CSPU contains fixes for 35 unique CVEs in 35 security updates across 5 Oracle product families. Out of the 35 security updates published, 31.4% of patches were assigned a critical severity. High severity patches accounted for the bulk of security patches at 51.4%, followed by critical severity patches at 31.4%.
This month's update includes 11 critical patches across 11 CVEs.
| Severity | Issues Patched | CVEs |
|---|---|---|
| Critical | 11 | 11 |
| High | 18 | 18 |
| Medium | 6 | 6 |
| Low | 0 | 0 |
| Total | 35 | 35 |
Analysis
This month's update saw the Oracle E-Business Suite product family contain the highest number of patches at 12, accounting for 34.3% of the total patches, followed by Oracle REST Data Services at 11 patches, which accounted for 31.4% of the total patches.
A full breakdown of the patches for this CSPU can be seen in the following table, which also includes a count of vulnerabilities that can be exploited over a network without authentication.
| Oracle Product Family | Number of Patches | Remote Exploit without Auth |
|---|---|---|
| Oracle E-Business Suite | 12 | 3 |
| Oracle REST Data Services | 11 | 7 |
| Oracle Communications | 8 | 4 |
| Oracle Database Server | 3 | 3 |
| Oracle Hospitality Applications | 1 | 1 |
Solution
Customers are advised to apply all relevant patches in this CSPU. Please refer to the May 2026 advisory for full details.
Identifying affected systems
A list of Tenable plugins to identify these vulnerabilities will appear here as they're released. This link uses a search filter to ensure that all matching plugin coverage will appear as it is released.
Get more information
- Oracle Critical Security Patch Update Advisory - May 2026
- Oracle May 2026 Critical Security Patch Update Risk Matrices
- Oracle Advisory to CVE Map
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