# 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.

- **Severity:** Critical 10.0 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N`)
- **Exploited in the wild:** Yes, since 24 Aug 2026 (CISA KEV)
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Jan 2026
- **Updated:** 25 Aug 2026
- **Also known as:** GHSA-4wp9-cf5h-v2g5

## 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 (Improper Access Control)

## Which versions are affected by CVE-2026-21962?

It affects 2 products.


Products: 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.

## 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:

- Unauthenticated vulnerability that may allow remote attackers to compromise confidentiality and integrity, potentially leading to full system compromise. (github_poc): https://github.com/samael0x4/CVE-2026-21962
- CVE-2026-21962 (github_poc): https://github.com/boroeurnprach/Ashwesker-CVE-2026-21962
- https://github.com/gregk4sec/cve-2026-21962 (github_poc): https://github.com/gregk4sec/cve-2026-21962
- Oracle Fusion Middleware Oracle HTTP Server / WebLogic Server Proxy Plug-in has an easily exploitable, unauthenticated, network-reachable flaw allowing compromise over HTTP. Affected supported versions include 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0. (github_poc): https://github.com/George0Papasotiriou/CVE-2026-21962-Oracle-HTTP-Server-WebLogic-Proxy-Plug-in-Critical-
- https://github.com/zeetee1235/CVE-2026-21962 (github_poc): https://github.com/zeetee1235/CVE-2026-21962
- CVE-2026-21962-EXP (github_poc): https://github.com/ThumpBo/CVE-2026-21962

## Other vulnerabilities in Oracle Http Server

- [CVE-2026-60365](https://insights.sbomify.com/CVE-2026-60365/): Missing authorization in Oracle HTTP Server (critical 10.0)
- [CVE-2006-5347](https://insights.sbomify.com/CVE-2006-5347/): Other in n/a (critical 10.0)
- [CVE-2006-5349](https://insights.sbomify.com/CVE-2006-5349/): Other in n/a (critical 10.0)
- [CVE-1999-1125](https://insights.sbomify.com/CVE-1999-1125/): Privilege escalation in n/a (critical 10.0)
- [CVE-2026-60363](https://insights.sbomify.com/CVE-2026-60363/): Auth bypass in Oracle HTTP Server (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-21962 and fix it if it is affected.

What it is: 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.
Exploitation: Yes. Attackers have exploited CVE-2026-21962 in the wild since at least 24 Aug 2026.

Affected product: Oracle Http Server. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-21962/ (Markdown: https://insights.sbomify.com/CVE-2026-21962/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-21962
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-21962
- OSV: https://osv.dev/vulnerability/CVE-2026-21962

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-21962/
Summaries are generated and may contain mistakes; the official description above is the record.