What is the CVSS score of CVE-2026-22016?

CVE-2026-22016 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Oracle Java SE are affected by CVE-2026-22016?

Unauthorized data disclosure vulnerability in Oracle Java SE and GraalVM (versions 8-26) allows unauthenticated attackers to extract sensitive data from applications processing XML.. A patch is available.

How to fix or mitigate CVE-2026-22016?

Within 24 hours, inventory all systems running Oracle Java SE, GraalVM for JDK, and GraalVM Enterprise Edition versions 8, 11, 17, 21, 25, or 26, and identify which applications process XML data or expose web services. Within 7 days, obtain patched updates from Oracle's security advisory for each affected version and deploy to a test environment to validate application compatibility. Within 30 days, complete production deployment of all patched Java versions and verify installation across the environment using Java version checking tools.

Oracle Java SE CVE-2026-22016

EUVD-2026-24327 HIGH

Information Exposure (CWE-200)

2026-04-21 oracle

GHSA-9m62-hmpm-rr2m

Authentication Bypass Java Information Disclosure Oracle Oracle Java Se Oracle Graalvm Enterprise Edition Oracle Graalvm For Jdk Oracle Corporation

7.5

CVSS 3.1 · Vendor: oracle

Severity by source

Vendor (oracle) PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

vuln.today AI

7.5 HIGH

Unauthenticated network delivery of crafted XML with low complexity and no interaction; impact is confidentiality-only per CWE-200, so I:N/A:N and no scope change.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

SUSE

HIGH

qualitative

Red Hat

7.5 HIGH

qualitative

Primary rating from Vendor (oracle).

CVSS VectorVendor: oracle

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Jul 24, 2026 - 06:32 vuln.today

Patch released

Apr 28, 2026 - 08:30 nvd

Patch available

EUVD ID Assigned

Apr 21, 2026 - 21:01 euvd

EUVD-2026-24327

CVE Published

Apr 21, 2026 - 20:35 nvd

HIGH 7.5

DescriptionCVE.org

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JAXP). Supported versions that are affected are Oracle Java SE: 8u481, 8u481-b50, 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 access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. 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 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

AnalysisAI

Unauthorized data disclosure in Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition arises from a flaw in the JAXP (Java API for XML Processing) component, allowing an unauthenticated remote attacker to read critical or all accessible data across affected JDK 8, 11, 17, 21, 25, and 26 builds. The confidentiality-only issue (CVSS 7.5, C:H/I:N/A:N) is easily exploitable over multiple network protocols, including via web services that pass attacker-supplied data into JAXP APIs, and also affects sandboxed Java Web Start/applet deployments running untrusted code. There is no public exploit identified at time of analysis and EPSS is very low (0.03%, 9th percentile), consistent with the SSVC exploitation status of 'none'.

Technical ContextAI

The affected component is JAXP, the Java API for XML Processing, which provides Java's built-in XML parsing (SAX, DOM, StAX), XSLT transformation, and XPath facilities. Flaws in XML processing stacks commonly stem from external entity/DTD handling, entity expansion, or resolver behavior that lets crafted XML pull in or leak data the parser should not expose. The CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) classification and the confidentiality-only impact (C:H/I:N/A:N) indicate the root cause is information disclosure through the parser rather than code execution or data tampering. Per the CPE data, exactly three products are implicated - cpe:2.3:a:oracle_corporation:oracle_java_se, oracle_graalvm_for_jdk, and oracle_graalvm_enterprise_edition - meaning any application built on these runtimes that feeds untrusted XML into JAXP APIs (directly or via a web service) inherits the exposure.

RemediationAI

Apply the fixed releases from the Oracle Critical Patch Update of April 2026 (https://www.oracle.com/security-alerts/cpuapr2026.html); the listed versions are the vulnerable builds, so upgrade Java SE and GraalVM to the corresponding CPU-patched releases for your track (8, 11, 17, 21, 25, 26). Red Hat OpenJDK users should apply the matching errata such as RHSA-2026:9255/9256/9682-9694 (https://access.redhat.com/errata/RHSA-2026:9255). Where immediate patching is not possible and the application accepts untrusted XML, harden JAXP by disabling external DTDs and external entity resolution - set XMLConstants.FEATURE_SECURE_PROCESSING(true), and the factory features http://apache.org/xml/features/disallow-doctype-decl=true plus external-general-entities and external-parameter-entities=false, or set the jdk.xml.* system properties (e.g. jdk.xml.entityExpansionLimit) - accepting that these can break legitimate XML that relies on DTDs or external entities. For sandboxed Java Web Start/applet deployments, restrict or disable loading of untrusted code, noting that these deployment models are already deprecated/removed in modern JDKs. Restrict network exposure of any web service that funnels external XML into JAXP APIs.

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Vendor StatusVendor

SUSE

Severity: High

Product	Status
SUSE Liberty Linux 10	Fixed
SUSE Liberty Linux 9	Fixed
SUSE Linux Enterprise Desktop 15 SP7	Fixed
SUSE Linux Enterprise Desktop 15 SP7	Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7	Fixed

CVE-2026-22016 vulnerability details – vuln.today

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Oracle Java SE CVE-2026-22016

Severity by source

CVSS VectorVendor: oracle

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

More in Java

Same weakness CWE-200 – Information Exposure

Same technique Authentication Bypass

Vendor StatusVendor

SUSE

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External POC / Exploit Code