CVE-2026-15141 Referer Validation Bypass in TL-WR820N Web Management Interface
An adjacent attacker can bypass Referer validation to access the web management interface and obtain sensitive device configuration details.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15141?
CVE-2026-15141 is a medium-severity vulnerability in TP-Link Systems Inc. TL-WR820N v2, published on 12 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The web interface of the affected device relies on the HTTP referrer header as part of request validation. Requests containing empty Referer value, or omitting the Referer header entirely, may be accepted and processed due to insufficient validation logic.
Successful exploitation may allow an adjacent attacker with access to the web management interface to obtain device configuration details and other sensitive information.
Weakness: CWE-346
Which versions are affected by CVE-2026-15141?
It affects 1 product.
Products include Tp-Link Tl-Wr820n Firmware.
How do I fix CVE-2026-15141?
No fix has been published for CVE-2026-15141 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-15141 being exploited?
There is no known exploitation of CVE-2026-15141 in the wild and no public exploit code.
Other vulnerabilities in TP-Link Systems Inc. TL-WR820N v2
Sources
Also known as GHSA-fv83-qv7h-9c74.