# CVE-2026-9033: Unauthenticated Captive Portal Session Termination and Forced Logout in Omada Gateways

> Unauthenticated attackers can terminate captive portal sessions on Omada Gateways, forcing users to re-authenticate and causing service disruption.

- **Severity:** Medium 6.0 (`CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Aug 2026
- **Updated:** 20 Aug 2026
- **Also known as:** GHSA-fpm4-hq62-cqf6

## What is CVE-2026-9033?

CVE-2026-9033 is a medium-severity missing authorization vulnerability in TP-Link Systems Inc DR3150 v1, published on 20 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An unauthenticated attacker with network access to the captive portal service of an affected device can terminate active captive portal sessions, including forcing logout of specific users or clearing all active sessions. Affected users must re-authenticate to regain access. 

Successful exploitation may allow termination of individual or all active captive portal sessions, causing temporary service disruption and requiring users to re-authenticate.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-9033?

It affects 18 products.


Products: Tp-Link Dr3150 Firmware, Tp-Link Dr3220v-4g Firmware, Tp-Link Dr3650v-4g Firmware, Tp-Link Dr3650v Firmware, Tp-Link Er603wp-4g-Outdoor Firmware, Tp-Link Er605 Firmware, Tp-Link Er605w Firmware, Tp-Link Er701-5g-Outdoor Firmware, Tp-Link Er703wp-4g-Outdoor Firmware, Tp-Link Er706w-4g Firmware, Tp-Link Er706w Firmware, Tp-Link Er706wp-4g Firmware, Tp-Link Er707-M2 Firmware, Tp-Link Er7206 Firmware, Tp-Link Er7212pc Firmware, Tp-Link Er7406 Firmware, Tp-Link Er7412-M2 Firmware, Tp-Link Er8411 Firmware.

## How do I fix CVE-2026-9033?

No fix has been published for CVE-2026-9033 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-9033 being exploited?

There is no known exploitation of CVE-2026-9033 in the wild and no public exploit code.

## Other vulnerabilities in TP-Link Systems Inc DR3150 v1

- [CVE-2026-19586](https://insights.sbomify.com/CVE-2026-19586/): Pre-Authentication OS Command Injection in Omada Gateways on OpenVPN Server in Omada Gateways (critical 9.3)
- [CVE-2026-19683](https://insights.sbomify.com/CVE-2026-19683/): Unencrypted Credential Transmission in Omada Gateway Dynamic DNS Authentication in Omada Gateways (medium 6.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-9033 and fix it if it is affected.

What it is: CVE-2026-9033 is a medium-severity missing authorization vulnerability in TP-Link Systems Inc DR3150 v1, published on 20 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-9033 in the wild and no public exploit code.

Affected product: TP-Link Systems Inc DR3150 v1. 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-2026-9033/ (Markdown: https://insights.sbomify.com/CVE-2026-9033/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-9033
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-9033
- OSV: https://osv.dev/vulnerability/CVE-2026-9033

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-9033/
Summaries are generated and may contain mistakes; the official description above is the record.