CVE-2026-34282Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Networking).
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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, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 and 21.0.10; Oracle GraalVM Enterprise Edition: 21.3.17. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
- CVSS
- 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-400, CWE-835
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Sep 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
oracle jre oracle:jre | 1.8.0; 11.0.30; 17.0.18; 21.0.10; 25.0.2; 26 | NVD |
oracle jdk oracle:jdk | 1.8.0; 11.0.30; 17.0.18; 21.0.10; 25.0.2; 26 | NVD |
oracle graalvm oracle:graalvm | 21.3.17 | NVD |
oracle graalvm_for_jdk oracle:graalvm_for_jdk | 17.0.18; 21.0.10 | NVD |
References
- https://www.oracle.com/security-alerts/cpuapr2026.htmlvendor-advisory
- https://access.redhat.com/errata/RHSA-2026:11403
- https://access.redhat.com/errata/RHSA-2026:11655
- https://access.redhat.com/errata/RHSA-2026:11822
- https://access.redhat.com/errata/RHSA-2026:11829
- https://access.redhat.com/errata/RHSA-2026:11902
- https://access.redhat.com/errata/RHSA-2026:22328
- https://access.redhat.com/errata/RHSA-2026:9254
- https://access.redhat.com/errata/RHSA-2026:9686
- https://access.redhat.com/errata/RHSA-2026:9687
- https://access.redhat.com/errata/RHSA-2026:9688
- https://access.redhat.com/errata/RHSA-2026:9689
- https://access.redhat.com/errata/RHSA-2026:9691
- https://access.redhat.com/errata/RHSA-2026:9693
- https://access.redhat.com/errata/RHSA-2026:9694
- https://access.redhat.com/security/cve/CVE-2026-34282
- https://bugzilla.redhat.com/show_bug.cgi?id=2460044
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34282.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.