CVE-2026-91502 Oracle WebLogic Server - Broken Access Control

Oracle WebLogic Server 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0 contain an unauthorized data access and partial denial of service vulnerability caused by network access via TLS, letting unauthenticated attackers modify, read data, and cause partial DoS remotely, exploit requires network access via TLS.

CVSS base score 7.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
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:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Published
20 October 2026
Updated
21 October 2026

Vendor fix

Update to the latest available version beyond 15.1.1.0.0.

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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