Vulnerability in Oracle Java SE and GraalVM Products
CVE-2026-91462

5.9MEDIUM

Key Information:

Vendor

Oracle
Status
Oracle Java Se
Oracle Graalvm For Jdk
Oracle Graalvm Enterprise Edition
Vendor
CVE Published:
20 October 2026

What is CVE-2026-91462?

A vulnerability exists in Oracle Java SE and GraalVM products, making it possible for unauthenticated attackers with network access to exploit the affected components. This vulnerability enables the unauthorized creation, deletion, or modification of critical data across the platforms. Attackers can manipulate APIs within the specified component without relying on untrusted Java applications. Organizations using supported versions should take immediate measures to assess their security posture and implement necessary updates to mitigate potential risks.

Affected Version(s)

Oracle GraalVM Enterprise Edition 21.3.19.1.1

Oracle GraalVM for JDK 17.0.20.1

Oracle GraalVM for JDK 21.0.12.1

References

https://www.oracle.com/security-alerts/cpuoct2026.html
vendor-advisory

CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.