CVE-2026-83368 Oracle GraalVM - Broken Access Control

Oracle GraalVM for JDK 17 23.0.13.1, JDK 21 23.1.12.1, GraalVM Enterprise Edition 21.3.19.1, and GraalVM 25.0.4.1 contain an unauthorized access vulnerability caused by a flaw in the Compiler component, letting unauthenticated network attackers access and partially disrupt data, exploit requires network access via HTTP with high complexity.

CVSS base score 7.0 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.28% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Information Disclosure, Data Tampering, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
Published
15 September 2026
Updated
15 October 2026
Weakness
CWE-284

Vendor fix

Update to the latest available version of Oracle GraalVM for JDK and Enterprise Edition.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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