CVE-2026-34282
Status: ModifiedHigh (7.5)—
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.
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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
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Base score: 7.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.89%
- Percentile among all scored CVEs: 58
- Score date: 10/1/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (4)
CWEs
- CWE-400
- CWE-835
References
- https://www.oracle.com/security-alerts/cpuapr2026.html
- 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
Raw JSON (NVD)
Show
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