Oracle Java SE JAXP RCE: 8u481, 11.0.30, 17.0.18, 21.0.10
CVE-2026-22016 Published on April 21, 2026

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).

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-22016 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
NONE
Availability Impact:
NONE

Weakness Types

What is an Information Disclosure Vulnerability?

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

CVE-2026-22016 has been classified to as an Information Disclosure vulnerability or weakness.

What is a Marshaling, Unmarshaling Vulnerability?

The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

CVE-2026-22016 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.

What is a XXE Vulnerability?

The software processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

CVE-2026-22016 has been classified to as a XXE vulnerability or weakness.


Products Associated with CVE-2026-22016

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2026-22016 are published in these products:

Oracle
 
Oracle Java
 
Oracle GraalVM
 
Canonical Ubuntu Linux
 
Red Hat Rhel Els
 
Red Hat Openjdk Els
 
Red Hat Enterprise Linux Eus
 
Red Hat Enterprise Linux (RHEL)
 
Red Hat Rhel Aus
 
Red Hat Rhel Eus Long Life
 
Red Hat Rhel E4s
 
Red Hat Rhel Tus
 
Red Hat Rhel Eus
 
Red Hat Openjdk
 
Red Hat Hummingbird
 

Affected Versions

Oracle Corporation Oracle Java SE: Oracle Corporation Oracle GraalVM for JDK: Oracle Corporation Oracle GraalVM Enterprise Edition: Red Hat Enterprise Linux Server (v. 7 ELS): Red Hat OpenJDK 11 ELS for RHEL 7: Red Hat Enterprise Linux Server Optional (v. 7 ELS): Red Hat OpenJDK 11 ELS for RHEL 8: Red Hat OpenJDK 11 ELS for RHEL 9: Red Hat Enterprise Linux AppStream EUS (v. 10.0): Red Hat Enterprise Linux AppStream (v. 10): Red Hat Enterprise Linux AppStream (v. 8): Red Hat Enterprise Linux AppStream AUS (v. 8.2): Red Hat Enterprise Linux AppStream AUS (v.8.4): Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4): Red Hat Enterprise Linux AppStream AUS (v.8.6): Red Hat Enterprise Linux AppStream E4S (v.8.6): Red Hat Enterprise Linux AppStream TUS (v.8.6): Red Hat Enterprise Linux AppStream E4S (v.8.8): Red Hat Enterprise Linux AppStream TUS (v.8.8): Red Hat Enterprise Linux AppStream E4S (v.9.0): Red Hat Enterprise Linux AppStream E4S (v.9.2): Red Hat Enterprise Linux AppStream EUS (v.9.4): Red Hat Enterprise Linux AppStream EUS (v.9.6): Red Hat Enterprise Linux AppStream (v. 9): Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0): Red Hat Enterprise Linux CodeReady Linux Builder (v. 10): Red Hat Enterprise Linux CRB (v. 8): Red Hat CodeReady Linux Builder EUS (v.9.4): Red Hat CodeReady Linux Builder EUS (v.9.6): Red Hat Enterprise Linux CodeReady Linux Builder (v. 9): Red Hat OPENJDK ELS 11.0.31: Red Hat Build of OpenJDK 17.0.19: Red Hat Build of OpenJDK 17.0.9: Red Hat Build of OpenJDK 21.0.11: Red Hat Build of OpenJDK 25.0.3: Red Hat Build of OpenJDK 8u492: Red Hat Hardened Images: Red Hat Enterprise Linux Supplementary EUS (v. 10.0): Red Hat Enterprise Linux Supplementary EUS (v.10.2): Red Hat Enterprise Linux Supplementary (v. 10): Red Hat Enterprise Linux Supplementary (v. 8): Red Hat Temurin Build of OpenJDK 25.0.3: Red Hat Enterprise Linux 6: Red Hat Enterprise Linux 7:

Exploit Probability

EPSS
0.36%
Percentile
27.49%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.