CVE-2026-86723 AVideo LoginControl PGP Authentication Bypass via verifyChallenge
Attackers can bypass PGP two-factor authentication in AVideo by exploiting loose comparison, gaining full authenticated access with only a password.
- 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-2026-86723?
CVE-2026-86723 is a high-severity authentication bypass vulnerability in WWBN AVideo, published on 8 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
AVideo through c3edcc274c389816d434acadac07ee78eaf330c1 contains an authentication bypass vulnerability in LoginControl::verifyChallenge() that uses loose comparison (==) instead of strict comparison (===) against unset session values. Attackers with only a password can submit an empty request to verifyChallenge.json.php to bypass PGP two-factor authentication and gain full authenticated access.
Weakness: CWE-287
Which versions are affected by CVE-2026-86723?
How do I fix CVE-2026-86723?
No fix has been published for CVE-2026-86723 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-2026-86723 being exploited?
There is no known exploitation of CVE-2026-86723 in the wild and no public exploit code.
Sources
Also known as GHSA-vhpv-cv9q-cpgj, GHSA-vmpj-f3mf-q4j2.