How severe is CVE-2026-34282?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Oracle Corporation Graalvm Enterprise Edition

CVE-2026-34282

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Networking). Supported versions that are affected are Oracle Java SE: 8u481-perf, 11.0.30, 17.0.18, 21.0…

EPSS: 0.001 (20.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Oracle Corporation Graalvm Enterprise Edition — versions 21.3.17
Oracle Corporation Graalvm For Jdk — versions 17.0.18, 21.0.10
Oracle Corporation Java Se — versions 8u481-perf, 11.0.30, 17.0.18

References

Oracle Advisory (vendor-advisory)

Frequently asked questions

What is CVE-2026-34282?: CVE-2026-34282 is a high-severity vulnerability in Oracle Corporation Graalvm Enterprise Edition. CVSS score: 7.5/10. Published 2026-04-21.
How severe is CVE-2026-34282?: High severity. CVSS v3 base score is 7.5 out of 10.