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CVE-2026-91417: Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Java SE, Oracle GraalVM Enterprise Edition. in Oracle Corporation Oracle Java SE

0
Medium
VulnerabilityCVE-2026-91417cvecve-2026-91417
Published: 10/20/2026 (10/20/2026, 21:25:51 UTC)
Source: CVE Database V5
Vendor/Project: Oracle Corporation
Product: Oracle Java SE

Description

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: CORBA). Supported versions that are affected are Oracle Java SE: 8u503 and 8u503-perf; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Java SE, Oracle GraalVM Enterprise Edition. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

CVSS v3.1

Score 5.3medium

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected software

Oracle Corporation

Oracle Java SE

Affected versions
=8u503=8u503-perf

Oracle Corporation

Oracle GraalVM Enterprise Edition

Affected versions
=21.3.19.1.1

Technical Details

Data Version
5.2
Assigner Short Name
oracle
Date Reserved
2026-09-14T22:10:16.633Z
Cvss Version
3.1
State
PUBLISHED
Vendor Advisory Urls
[{"url":"https://www.oracle.com/security-alerts/cpuoct2026.html","vendor":"Oracle"}]

Threat ID: 6ad7df472cdf04f656639b19

Added to database: 10/20/2026, 21:38:15 UTC

Last updated: 10/20/2026, 21:50:01 UTC

Views: 2

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