Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-grpc-server). Supported versions that are affected are 3.0.0-3.2.21. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP/2 to compromise Helidon. While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data as well as unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 7.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N).
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://www.oracle.com/security-alerts/cpuoct2026.html |
|
History
Wed, 21 Oct 2026 06:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Unauthenticated HTTP/2 Attack on Oracle Helidon gRPC Server Enables Unauthorized Data Access | |
| Weaknesses | CWE-284 CWE-285 |
Tue, 20 Oct 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-grpc-server). Supported versions that are affected are 3.0.0-3.2.21. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP/2 to compromise Helidon. While the vulnerability is in Helidon, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data as well as unauthorized read access to a subset of Helidon accessible data. CVSS 3.1 Base Score 7.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N). | |
| First Time appeared |
Oracle
Oracle helidon |
|
| CPEs | cpe:2.3:a:oracle:helidon:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Oracle
Oracle helidon |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: oracle
Published: 2026-10-20T21:21:40.232Z
Updated: 2026-10-20T21:21:40.232Z
Reserved: 2026-09-28T15:40:09.493Z
Link: CVE-2026-101579
No data.
Status : Deferred
Published: 2026-10-20T22:18:11.237
Modified: 2026-10-21T18:39:21.847
Link: CVE-2026-101579
No data.