CVE-2026-34282
published 2026-04-21CVE-2026-34282: Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Networking). Supported…
PriorityP346high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.64%
46.3th percentile
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).
Affected
32 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| oracle | graalvm | — | — |
| oracle | graalvm_for_jdk | — | — |
| oracle | graalvm_for_jdk | — | — |
| oracle | jdk | — | — |
| oracle | jdk | — | — |
| oracle | jdk | — | — |
| oracle | jdk | — | — |
| oracle | jdk | — | — |
| oracle | jdk | — | — |
| oracle | jre | — | — |
| oracle | jre | — | — |
| oracle | jre | — | — |
| oracle | jre | — | — |
| oracle | jre | — | — |
| oracle | jre | — | — |
| oracle_corporation | oracle_graalvm_enterprise_edition | — | — |
| oracle_corporation | oracle_graalvm_for_jdk | — | — |
| oracle_corporation | oracle_graalvm_for_jdk | — | — |
| oracle_corporation | oracle_java_se | — | — |
| oracle_corporation | oracle_java_se | — | — |
| oracle_corporation | oracle_java_se | — | — |
| oracle_corporation | oracle_java_se | — | — |
| oracle_corporation | oracle_java_se | — | — |
| oracle_corporation | oracle_java_se | — | — |
| ubuntu | openjdk-17 | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
vendor_redhat7.5HIGH
vendor_ubuntu2.9LOW
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Ubuntu
CRaC JDK 21 vulnerabilities
vendor_ubuntu·2026-05-28·CVSS 2.9
CVE-2026-34282 [LOW] CRaC JDK 21 vulnerabilities
Title: CRaC JDK 21 vulnerabilities
Summary: Several security issues were fixed in CRaC JDK 21.
Thomas Beckers discovered that the JAXP component of CRaC JDK 21 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to gain unauthorized access to sensitive
information. (CVE-2026-22016)
It was discovered that the Networking component of CRaC JDK 21 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to cause a denial of service.
(CVE-2026-34282)
It was discovered that the JSSE component of CRaC JDK 21 did not correctly
authenticate certain APIs. A remote unauthenticated attacker could possibly
use this issue to cause a denial of service. (CVE-2026-22021)
It was discovered that
Ubuntu
OpenJDK 17 vulnerabilities
vendor_ubuntu·2026-05-28·CVSS 2.9
CVE-2026-22021 [LOW] OpenJDK 17 vulnerabilities
Title: OpenJDK 17 vulnerabilities
Summary: Several security issues were fixed in OpenJDK 17.
Thomas Beckers discovered that the JAXP component of OpenJDK 17 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to gain unauthorized access to sensitive
information. (CVE-2026-22016)
It was discovered that the Networking component of OpenJDK 17 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to cause a denial of service.
(CVE-2026-34282)
It was discovered that the JSSE component of OpenJDK 17 did not correctly
authenticate certain APIs. A remote unauthenticated attacker could possibly
use this issue to cause a denial of service. (CVE-2026-22021)
It was discovered that the J
Ubuntu
OpenJDK 21 vulnerabilities
vendor_ubuntu·2026-05-28·CVSS 2.9
CVE-2026-22021 [LOW] OpenJDK 21 vulnerabilities
Title: OpenJDK 21 vulnerabilities
Summary: Several security issues were fixed in OpenJDK 21.
Thomas Beckers discovered that the JAXP component of OpenJDK 21 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to gain unauthorized access to sensitive
information. (CVE-2026-22016)
It was discovered that the Networking component of OpenJDK 21 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to cause a denial of service.
(CVE-2026-34282)
It was discovered that the JSSE component of OpenJDK 21 did not correctly
authenticate certain APIs. A remote unauthenticated attacker could possibly
use this issue to cause a denial of service. (CVE-2026-22021)
It was discovered that the J
Ubuntu
OpenJDK 25 vulnerabilities
vendor_ubuntu·2026-05-28·CVSS 2.9
CVE-2026-22008 [LOW] OpenJDK 25 vulnerabilities
Title: OpenJDK 25 vulnerabilities
Summary: Several security issues were fixed in OpenJDK 25.
Thomas Beckers discovered that the JAXP component of OpenJDK 25 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to gain unauthorized access to sensitive
information. (CVE-2026-22016)
It was discovered that the Networking component of OpenJDK 25 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to cause a denial of service.
(CVE-2026-34282)
It was discovered that the JSSE component of OpenJDK 25 did not correctly
authenticate certain APIs. A remote unauthenticated attacker could possibly
use this issue to cause a denial of service. (CVE-2026-22021)
It was discovered that the J
Ubuntu
CRaC JDK 17 vulnerabilities
vendor_ubuntu·2026-05-28·CVSS 2.9
CVE-2026-34282 [LOW] CRaC JDK 17 vulnerabilities
Title: CRaC JDK 17 vulnerabilities
Summary: Several security issues were fixed in CRaC JDK 17.
Thomas Beckers discovered that the JAXP component of CRaC JDK 17 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to gain unauthorized access to sensitive
information. (CVE-2026-22016)
It was discovered that the Networking component of CRaC JDK 17 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to cause a denial of service.
(CVE-2026-34282)
It was discovered that the JSSE component of CRaC JDK 17 did not correctly
authenticate certain APIs. A remote unauthenticated attacker could possibly
use this issue to cause a denial of service. (CVE-2026-22021)
It was discovered that
Ubuntu
CRaC JDK 25 vulnerabilities
vendor_ubuntu·2026-05-28·CVSS 2.9
CVE-2026-22008 [LOW] CRaC JDK 25 vulnerabilities
Title: CRaC JDK 25 vulnerabilities
Summary: Several security issues were fixed in CRaC JDK 25.
Thomas Beckers discovered that the JAXP component of CRaC JDK 25 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to gain unauthorized access to sensitive
information. (CVE-2026-22016)
It was discovered that the Networking component of CRaC JDK 25 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to cause a denial of service.
(CVE-2026-34282)
It was discovered that the JSSE component of CRaC JDK 25 did not correctly
authenticate certain APIs. A remote unauthenticated attacker could possibly
use this issue to cause a denial of service. (CVE-2026-22021)
It was discovered that
Ubuntu
OpenJDK 11 vulnerabilities
vendor_ubuntu·2026-05-28·CVSS 2.9
CVE-2026-22021 [LOW] OpenJDK 11 vulnerabilities
Title: OpenJDK 11 vulnerabilities
Summary: Several security issues were fixed in OpenJDK 11.
Thomas Beckers discovered that the JAXP component of OpenJDK 11 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to gain unauthorized access to sensitive
information. (CVE-2026-22016)
It was discovered that the Networking component of OpenJDK 11 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to cause a denial of service.
(CVE-2026-34282)
It was discovered that the JSSE component of OpenJDK 11 did not correctly
authenticate certain APIs. A remote unauthenticated attacker could possibly
use this issue to cause a denial of service. (CVE-2026-22021)
It was discovered that the J
Ubuntu
OpenJDK 26 vulnerabilities
vendor_ubuntu·2026-05-28·CVSS 2.9
CVE-2026-22008 [LOW] OpenJDK 26 vulnerabilities
Title: OpenJDK 26 vulnerabilities
Summary: Several security issues were fixed in OpenJDK 26.
Thomas Beckers discovered that the JAXP component of OpenJDK 26 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to gain unauthorized access to sensitive
information. (CVE-2026-22016)
It was discovered that the Networking component of OpenJDK 26 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to cause a denial of service.
(CVE-2026-34282)
It was discovered that the JSSE component of OpenJDK 26 did not correctly
authenticate certain APIs. A remote unauthenticated attacker could
possibly use this issue to cause a denial of service. (CVE-2026-22021)
It was discovered that the J
Red Hat
openjdk: OpenJDK: Enhance TLS connection handling (Oracle CPU 2026-04)
vendor_redhat·2026-04-21·CVSS 7.5
CVE-2026-34282 [HIGH] CWE-835 openjdk: OpenJDK: Enhance TLS connection handling (Oracle CPU 2026-04)
openjdk: OpenJDK: Enhance TLS connection handling (Oracle CPU 2026-04)
No description is available for this CVE.
Package: java-17-openjdk-portable (Red Hat build of OpenJDK 17) - Affected
Package: java-17-openjdk-windows (Red Hat build of OpenJDK 17) - Affected
Package: java-1.8.0-openjdk-portable (Red Hat build of OpenJDK 1.8) - Not affected
Package: java-1.8.0-openjdk-windows (Red Hat build of OpenJDK 1.8) - Not affected
Package: java-21-openjdk-portable (Red Hat build of OpenJDK 21) - Affected
Package: java-21-openjdk-windows (Red Hat build of OpenJDK 21) - Affected
Package: java-25-openjdk-portable (Red Hat build of OpenJDK 25) - Affected
Package: java-25-openjdk-windows (Red Hat build of OpenJDK 25) - Affected
Package: java-21-ibm-semeru-certified-jdk (Red Hat Enterprise Lin
VulDB
Oracle Java SE/GraalVM for JDK/GraalVM Enterprise Edition Networking denial of service (Nessus ID 309659 / WID-SEC-2026-1201)
vuldb·2026-04-24·CVSS 7.5
CVE-2026-34282 [HIGH] Oracle Java SE/GraalVM for JDK/GraalVM Enterprise Edition Networking denial of service (Nessus ID 309659 / WID-SEC-2026-1201)
A vulnerability was found in Oracle Java SE, GraalVM for JDK and GraalVM Enterprise Edition. It has been rated as problematic. This impacts an unknown function of the component Networking. The manipulation leads to denial of service.
This vulnerability is documented as CVE-2026-34282. The attack can be initiated remotely. There is not any exploit available.
Upgrading the affected component is advised.
GHSA
GHSA-hpm9-74qx-6x32: Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Networking)
ghsa_unreviewed·2026-04-21
CVE-2026-34282 [HIGH] CWE-400 GHSA-hpm9-74qx-6x32: Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Networking)
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
No detection rules found.
https://www.oracle.com/security-alerts/cpuapr2026.htmlhttps://access.redhat.com/errata/RHSA-2026:11403https://access.redhat.com/errata/RHSA-2026:11655https://access.redhat.com/errata/RHSA-2026:11822https://access.redhat.com/errata/RHSA-2026:11829https://access.redhat.com/errata/RHSA-2026:11902https://access.redhat.com/errata/RHSA-2026:22328https://access.redhat.com/errata/RHSA-2026:9254https://access.redhat.com/errata/RHSA-2026:9256https://access.redhat.com/errata/RHSA-2026:9686https://access.redhat.com/errata/RHSA-2026:9687https://access.redhat.com/errata/RHSA-2026:9688https://access.redhat.com/errata/RHSA-2026:9689https://access.redhat.com/errata/RHSA-2026:9691https://access.redhat.com/errata/RHSA-2026:9693https://access.redhat.com/errata/RHSA-2026:9694https://access.redhat.com/security/cve/CVE-2026-34282https://bugzilla.redhat.com/show_bug.cgi?id=2460044https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34282.json
2026-04-21
Published