CVE-2026-36829 Auth bypass in n/a
Attackers can bypass authentication in the Panabit PAP-XM320 embedded HTTP server by exploiting a directory traversal flaw in session cookie validation.
- 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-2026-36829?
CVE-2026-36829 is a critical authentication bypass vulnerability in n/a, published on 19 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An authentication bypass vulnerability exists in the embedded HTTP server of Panabit PAP-XM320 up to and including v7.7. The server validates session cookies using a filesystem existence check based on a user-controlled cookie value without proper sanitization, allowing directory traversal and bypass of authentication.
Which versions are affected by CVE-2026-36829?
How do I fix CVE-2026-36829?
No fix has been published for CVE-2026-36829 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-36829 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-36829 exists.
Sources
Also known as GHSA-xh8m-w9h2-4fc7.