CVE-2026-126248 Information disclosure in FortiAuthenticator
Unauthenticated attackers can obtain sensitive credentials from FortiAuthenticator over HTTPS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Harmful if only installed
- No
- Needs a specific call
- No
- Fix
- None listed
What is CVE-2026-126248?
CVE-2026-126248 is a high-severity information disclosure vulnerability in Fortinet FortiAuthenticator, published on 11 Nov 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A insufficiently protected credentials vulnerability in Fortinet FortiAuthenticator 8.0.0 through 8.0.3, FortiAuthenticator 6.6.0 through 6.6.10 may allow an unauthenticated attacker to obtain sensitive information via HTTPS requests.
Weakness: CWE-522
Which versions are affected by CVE-2026-126248?
An affected version is exposed as installed. No special setting or call is needed.
How do I fix CVE-2026-126248?
No fix has been published for CVE-2026-126248 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate any secrets that may have been exposed. More about Information disclosure.
Is CVE-2026-126248 being exploited?
There is no known exploitation of CVE-2026-126248 in the wild and no public exploit code.
Sources
Also known as GHSA-gh34-c3f7-rp3c.