CVE-2026-22081 Cookie without HTTPOnly Flag Vulnerability in Tenda Wireless Routers
Attackers can steal session cookies from Tenda routers due to missing HTTPOnly flags, leading to unauthorized administrative access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-22081?
CVE-2026-22081 is a high-severity vulnerability in Tenda 300Mbps Wireless Router F3 and N300 Easy Setup Router, published on 9 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
This vulnerability exists in Tenda wireless routers (300Mbps Wireless Router F3 and N300 Easy Setup Router) due to the missing HTTPOnly flag for session cookies associated with the web-based administrative interface. A remote at-tacker could exploit this vulnerability by capturing session cookies transmitted over an insecure HTTP connection.
Successful exploitation of this vulnerability could allow the attacker to obtain sensitive information and gain unau-thorized access to the targeted device.
Weakness: CWE-1004
Which versions are affected by CVE-2026-22081?
How do I fix CVE-2026-22081?
No fix has been published for CVE-2026-22081 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-22081 being exploited?
There is no known exploitation of CVE-2026-22081 in the wild and no public exploit code.
Sources
Also known as GHSA-4f2m-4qcx-27xf.