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9.1

Oracle WebLogic Server allows remote attackers to change data

CVE-2026-87302 · published 16 days ago
Summary

Certain recent versions of Oracle WebLogic Server can be accessed over the network without a password, letting an outsider view, add, delete or alter the data the server holds. This could expose confidential information or let critical data be tampered with. Apply the vendor's security update or patches as soon as possible and restrict network access to the server.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
oracle corporation oracle weblogic server 12.2.1.4.0
oracle weblogic_server 12.2.1.4.0
14.1.1.0.0
14.1.2.0.0
15.1.1.0.0
cpe:2.3:a:oracle:weblogic_server:12.2.1.4.0:*:*:*:*:*:*:*
Original advisory text
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easi...
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0 and 15.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle WebLogic Server accessible data as well as unauthorized access to critical data or complete access to all Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N).
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically
  • Gives an attacker full control
Severity
9.1 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-287Improper Authentication
CWE-306Missing Authentication for Critical Function
Timeline
Published20 Oct 2026
Updated5 Nov 2026
First seen20 Oct 2026
Sources
CVE-2026-87302 · NVD
CVE-2026-87302 · MITRE
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