---
id: "CVE-2026-101515"
kind: "vulnerability"
aliases: ["CVE-2026-101515"]
title: "Oracle WebLogic Server: unauthenticated HTTP flaw exposes critical data"
severity: "medium"
cvss: 5.9
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["enterprise", "java", "oracle-weblogic", "runtime", "self-hosted"]
not_affected_if: ["no-http-exposure", "unaffected-version"]
published_at: "2026-10-20T22:18:00+00:00"
first_seen_at: "2026-10-23T21:57:22+00:00"
updated_at: "2026-10-25T04:08:34+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-101515", "first_seen_at": "2026-10-23T21:57:22+00:00"}]
---

# Oracle WebLogic Server: unauthenticated HTTP flaw exposes critical data

A flaw in the Centralized Thirdparty Jars component of Oracle WebLogic Server can be reached over HTTP without logging in. A successful attack gives unauthorized read access to critical data the server can reach.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed WebLogic version against the affected list: `12.2.1.4.0`, `14.1.1.0.0`, `14.1.2.0.0`, `15.1.1.0.0`
- Confirm whether the Oracle Critical Patch Update advisory for the product lists this CVE as applicable to your installed patch level: unknown

## Fix

- Apply the Oracle security patch for WebLogic Server from the current Critical Patch Update: unknown patch number
- Restrict HTTP access to WebLogic admin and application ports to trusted networks until patched

## Timeline

- 2026-10-23T21:57:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-101515

## From the sources

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Centralized Thirdparty Jars).  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. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebLogic Server.  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 5.9 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_