# CVE-2026-114820 - Vulnerability in the Oracle Java SE, Oracle GraalV

DevFeed: [CVE-2026-114820 - Vulnerability in the Oracle Java SE, Oracle GraalV](<https://devfeed.tech/articles/cve-2026-114820-vulnerability-in-the-oracle-java-se-oracle-graalv-98971.md>)

Original publisher: [Read original article](<https://cvefeed.io/vuln/detail/CVE-2026-114820>)

Author: CVEFEED.io; oracle.com

Published: 2026-10-24T19:17:04Z

Content type: article

Language: en

Sources: [Latest High/Critical Vulnerabilitiy Feed](<https://devfeed.tech/sources/latest-high-critical-vulnerabilitiy-feed.md>)

Topics: [Security](<https://devfeed.tech/topics/security.md>), [Exploit](<https://devfeed.tech/topics/exploit.md>)

Tags: [cve-2026-114820](<https://devfeed.tech/tags/cve-2026-114820.md>), [cvss](<https://devfeed.tech/tags/cvss.md>), [graalvm](<https://devfeed.tech/tags/graalvm.md>), [graalvm-for-jdk](<https://devfeed.tech/tags/graalvm-for-jdk.md>), [java](<https://devfeed.tech/tags/java.md>), [java-se](<https://devfeed.tech/tags/java-se.md>), [oracle](<https://devfeed.tech/tags/oracle.md>), [vulnerability](<https://devfeed.tech/tags/vulnerability.md>)

## AI overview

CVE-2026-114820 affects the JSSE component in listed Oracle Java SE versions (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, and GraalVM Enterprise Edition 21.3.20.0.2. The description says an unauthenticated attacker with network access can exploit it easily through multiple protocols, including via APIs supplied data by a web service. It also applies to sandboxed Java Web Start or applet deployments that run untrusted code and rely on the Java sandbox. Successful exploitation may expose accessible data and permit its unauthorized creation, deletion, or modification. CVSS 3.1 is 9.1 (critical), with high confidentiality and integrity impact and no availability impact.

## Source excerpt

CVE ID :CVE-2026-114820 Published : Oct. 24, 2026, 7:17 p.m. | 3 hours, 10 minutes ago Description :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). Severity: 9.1 | CRITICAL Visit the link for more details, such as CVSS details, affected products, timeline, and more...