CVE-2026-82648 WWBN AVideo SSRF Filter Bypass via NAT64 Hex Address
Attackers can bypass SSRF protections in WWBN AVideo using hex-encoded NAT64 addresses to access internal services and cloud metadata.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-82648?
CVE-2026-82648 is a high-severity server-side request forgery vulnerability in WWBN AVideo, published on 30 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
WWBN AVideo contains a server-side request forgery filter bypass vulnerability in the isSSRFSafeURL function that fails to normalize NAT64 addresses written in hexadecimal form. Attackers can bypass SSRF protections by supplying hex-encoded NAT64 addresses like 64:ff9b::a9fe:a9fe to reach cloud metadata services and loopback interfaces.
Weakness: CWE-20
Which versions are affected by CVE-2026-82648?
How do I fix CVE-2026-82648?
No fix has been published for CVE-2026-82648 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-82648 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82648 exists.
Sources
Also known as GHSA-4743-4j8m-92f3.