CVE-2026-21962 Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in Improper Access Control
Unauthenticated attackers can access, create, delete, or modify critical data in Oracle HTTP Server and WebLogic Server Proxy Plug-in via network access.
- Exploited in the wild
- Since 24 Aug 2026
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-21962?
CVE-2026-21962 is a critical missing authorization vulnerability in Oracle Http Server, published on 20 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Vulnerability in the Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in product of Oracle Fusion Middleware (component: Weblogic Server Proxy Plug-in for Apache HTTP Server, Weblogic Server Proxy Plug-in for IIS). Supported versions that are affected are 12.2.1.4.0, 14.1.1.0.0 and 14.1.2.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in. While the vulnerability is in Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in accessible data as well as unauthorized access to critical data or complete access to all Oracle HTTP Server, Oracle Weblogic Server Proxy Plug-in accessible data. Note: Affected version for Weblogic Server Proxy Plug-in for IIS is 12.2.1.4.0 only. CVSS 3.1 Base Score 10.0 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N).
Weakness: CWE-284
Which versions are affected by CVE-2026-21962?
It affects 2 products.
Products include Oracle Http Server, Oracle Weblogic Server Proxy Plug-In.
How do I fix CVE-2026-21962?
No fix has been published for CVE-2026-21962 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 27 Aug 2026.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-21962 being exploited?
Yes. Attackers have exploited CVE-2026-21962 in the wild since at least 24 Aug 2026.
Public exploit code: 10 proofs of concept on GitHub.
Other vulnerabilities in Oracle Http Server
Sources
Also known as GHSA-4wp9-cf5h-v2g5.