CVE-2025-66698 Auth bypass in n/a
Attackers can bypass authentication by sending crafted HTTP requests to API endpoints in the Semantic machines library.
- 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-2025-66698?
CVE-2025-66698 is a high-severity authentication bypass vulnerability in n/a, published on 13 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue in Semantic machines v5.4.8 allows attackers to bypass authentication via sending a crafted HTTP request to various API endpoints.
Weakness: CWE-287
Which versions are affected by CVE-2025-66698?
It affects 1 product.
Products include Semantic-Machines Veda.
How do I fix CVE-2025-66698?
No fix has been published for CVE-2025-66698 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-2025-66698 being exploited?
There is no known exploitation of CVE-2025-66698 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-39w8-5vq7-4c2j.