OCTOBER 14, 2026
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Case File

CVE-2026-83408

HIGH · CVSS 8.1 EPSS 0.42% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-15 · Last synced 2026-10-13

CyberRota Analysis

AI-Generated

Oracle GraalVM for JDK versions 17, 21, and 25 is vulnerable to a high-severity flaw that allows unauthenticated attackers with network access to compromise the environment via HTTP. Successful exploitation can lead to complete takeover, impacting confidentiality, integrity, and availability. Organizations using these specific versions of Oracle GraalVM should prioritize immediate remediation to mitigate potential risks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-83408
Severity
HIGH
CVSS
8.1
EPSS
0.42%
Oracle Java

Original NVD Description

Vulnerability in the Oracle GraalVM for JDK, Oracle GraalVM product of Oracle Java SE (component: Compiler). The supported version that is affected is Oracle GraalVM for JDK 17: 23.0.13.1; Oracle GraalVM for JDK 21: 23.1.12.1; Oracle GraalVM: 25.0.4.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle GraalVM for JDK, Oracle GraalVM. Successful attacks of this vulnerability can result in takeover of Oracle GraalVM for JDK, Oracle GraalVM. CVSS 3.1 Base Score 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).