CVE-2026-80443 Insecure TLS Certificate Validation in API Tool Runner in HAVELSAN's Sef - AI Chatbot Platform
An insecure TLS certificate validation flaw allows Adversary in the Middle attacks on the Sef AI Chatbot Platform, which is now unsupported.
- 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-2026-80443?
CVE-2026-80443 is a high-severity vulnerability in HAVELSAN Inc. Sef - AI Chatbot Platform, published on 2 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper certificate validation vulnerability in HAVELSAN Inc. Sef - AI Chatbot Platform allows Adversary in the Middle (AiTM).
This issue affects Sef - AI Chatbot Platform: before 2.1. NOTE: The vendor was contacted and it was learned that the product is not supported.
Weakness: CWE-295
Which versions are affected by CVE-2026-80443?
How do I fix CVE-2026-80443?
No fix has been published for CVE-2026-80443 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-80443 being exploited?
There is no known exploitation of CVE-2026-80443 in the wild and no public exploit code.
Sources
Also known as GHSA-679g-qgm4-wf24.