Vulnerability in Oracle Java SE and GraalVM Enterprise Edition
CVE-2026-91381

3.7LOW

Key Information:

Vendor

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

What is CVE-2026-91381?

A vulnerability exists in Oracle Java SE and GraalVM Enterprise Edition components that allows an unauthenticated attacker to compromise system integrity through various network protocols. This risk enables unauthorized modifications, such as updates, inserts, or deletions of accessible data within the affected products. Particularly, the vulnerable APIs can be targeted through web services that transmit data, making it crucial for Java deployments to be cautious, especially those utilizing sandboxing for untrusted code. As Java apps commonly load external code, ensuring robust security measures is vital to mitigate potential threats.

Affected Version(s)

Oracle GraalVM Enterprise Edition 21.3.19.1.1

Oracle Java SE 8u503

Oracle Java SE 8u503-perf

References

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

CVSS V3.1

Score:
3.7
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.