CVE-2026-101579
HighCVSS 7.2Summary
Vulnerability in Oracle Helidon (component helidon-grpc-server) versions 3.0.0-3.2.21. Easily exploitable by an unauthenticated attacker with network access via HTTP/2, leading to unauthorized modification and read access to data and impact on other products.
Risk Assessment
An attacker could modify data and gain access to some data, and due to scope change, other systems may be affected. CVSS score of 7.2 indicates high risk.
Recommendation
Update Helidon to a version outside the 3.0.0-3.2.21 range. Restrict network access to Helidon services and monitor HTTP/2 traffic.
Other vulnerabilities in Oracle Helidon
See all- CVE-2026-101585High
Vulnerability in Oracle Helidon (component helidon-cors) versions 3.0.0-3.2.21. Easily exploitable by an unauthenticated attacker with network access via HTTP, leading to unauthorized modification and read access to data and impact on other products.
- CVE-2026-101583High
Vulnerability in Oracle Helidon (component helidon-common-mapper) versions 4.0.0-4.5.5 and 27.0.0. Difficult to exploit, allows an unauthenticated attacker with network access via HTTP to cause unauthorized modification of data, partial read access, and partial DOS.
- CVE-2026-101572High
Vulnerability in Oracle Helidon (component helidon-webclient-http2) versions 4.0.0-4.5.5 and 27.0.0. Easily exploitable by an unauthenticated attacker with network access via HTTP/2, leading to a hang or frequently repeatable crash (complete DOS).
Original NVD description (English source)
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).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS