CVE-2026-101574 Oracle Corporation CVE debrief

Who should care

Defenders and security teams responsible for Oracle Helidon instances, especially those in versions 4.0.0 through 4.5.5 and 27.0.0, should assess their exposure and prioritize patching or applying compensating controls. This vulnerability requires attention due to its potential impact on data confidentiality and integrity.

Why it matters

CVE-2026-101574 is a medium-severity vulnerability in Oracle Helidon that requires human interaction to exploit. It affects versions 4.0.0 through 4.5.5 and 27.0.0. Defenders should verify their inventory, assess exposure, and prioritize patching or compensating controls to mitigate potential data confidentiality and integrity impacts.

• Potential unauthorized access to critical data or complete access to all Helidon accessible data.
• Potential unauthorized update, insert, or delete access to some Helidon accessible data.
• Requires verification of Helidon instance inventory and exposure to untrusted networks.
• Prioritization of patching or updates for affected versions.

Technical summary

The vulnerability in Oracle Helidon (component: OIDC) allows an unauthenticated attacker with network access via HTTP to compromise Helidon. Successful attacks require human interaction from a person other than the attacker. The vulnerability affects Helidon versions 4.0.0-4.5.5 and 27.0.0. CVSS 3.1 Base Score: 6.9 (Confidentiality and Integrity impacts). CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N.

Defensive priority

Defenders should prioritize verifying the inventory of Helidon instances within their environment, especially those in versions 4.0.0 through 4.5.5 and 27.0.0, and assess if they are exposed to untrusted networks. Applying vendor-provided patches or updates should be a high priority.

Recommended defensive actions

• Verify the inventory of Helidon instances within the environment, focusing on versions 4.0.0 through 4.5.5 and 27.0.0.
• Assess if Helidon instances are exposed to untrusted networks.
• Apply vendor-provided patches or updates for Helidon.
• Monitor Helidon systems for unauthorized access or modifications.
• Implement compensating controls if patches cannot be applied immediately.

Evidence notes

The CVE Program and NVD provide official records of this vulnerability. Oracle Corporation has also released an advisory regarding this issue. However, details about exploitation or specific impacts beyond the provided CVSS score and vector are limited.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.