CVE-2026-114820

CRITICAL CVSS 3.1: 9.1
Updated Oct 24, 2026
Oracle
Parameter Value
CVSS 9.1 (CRITICAL)
Affected Versions 8u511 — perf
Type CWE-327 (Weak Crypto Algorithm)
Vendor Oracle
Public PoC No

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JSSE). Supported versions that are affected are Oracle Java SE: 8u511-b32, 8u511-perf-b32, 11.0.33.0.2, 17.0.21.0.2, 21.0.13.0.2, 25.0.5.0.2, 27.0.1.0.2; Oracle GraalVM for JDK: 17.0.21.0.2 and 21.0.13.0.2; Oracle GraalVM Enterprise Edition: 21.3.20.0.2. 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 creation, deletion or modification access to critical data or all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data as well as 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 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption

CVSS Vector v3.1

Vulnerable Products 10

Configuration From (including) Up to (excluding)
Oracle Java_Se
cpe:2.3:a:oracle:java_se:*:*:*:*:*:*:*:*
8u511 <= b32
Oracle Java_Se
cpe:2.3:a:oracle:java_se:*:*:*:*:*:*:*:*
8u511 <= perf
Oracle Java_Se
cpe:2.3:a:oracle:java_se:11.0.33.0.2:*:*:*:*:*:*:*
— —
Oracle Java_Se
cpe:2.3:a:oracle:java_se:17.0.21.0.2:*:*:*:*:*:*:*
— —
Oracle Java_Se
cpe:2.3:a:oracle:java_se:21.0.13.0.2:*:*:*:*:*:*:*
— —
Oracle Java_Se
cpe:2.3:a:oracle:java_se:25.0.5.0.2:*:*:*:*:*:*:*
— —
Oracle Java_Se
cpe:2.3:a:oracle:java_se:27.0.1.0.2:*:*:*:*:*:*:*
— —
Oracle Graalvm_For_Jdk
cpe:2.3:a:oracle:graalvm_for_jdk:17.0.21.0.2:*:*:*:*:*:*:*
— —
Oracle Graalvm_For_Jdk
cpe:2.3:a:oracle:graalvm_for_jdk:21.0.13.0.2:*:*:*:*:*:*:*
— —
Oracle Graalvm
cpe:2.3:a:oracle:graalvm:21.3.20.0.2:*:*:*:enterprise:*:*:*
— —