CVE-2026-34282

Oracle Java SE · Vulnerability

CVSS 3.1 7.5 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-34282

Published

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).

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-34282

Published

Oracle Java SE

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Oracle Corporation",
                    "product": "Oracle Java SE",
                    "versions": [
                        {
                            "version": "8u481-perf",
                            "status": "affected"
                        },
                        {
                            "version": "11.0.30",
                            "status": "affected"
                        },
                        {
                            "version": "17.0.18",
                            "status": "affected"
                        },
                        {
                            "version": "21.0.10",
                            "status": "affected"
                        },
                        {
                            "version": "25.0.2",
                            "status": "affected"
                        },
                        {
                            "version": "26",
                            "status": "affected"
                        }
                    ]
                }

Oracle GraalVM for JDK

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Oracle Corporation",
                    "product": "Oracle GraalVM for JDK",
                    "versions": [
                        {
                            "version": "17.0.18",
                            "status": "affected"
                        },
                        {
                            "version": "21.0.10",
                            "status": "affected"
                        }
                    ]
                }

Oracle GraalVM Enterprise Edition

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Oracle Corporation",
                    "product": "Oracle GraalVM Enterprise Edition",
                    "versions": [
                        {
                            "version": "21.3.17",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON