CVE-2026-49139 Nanobot < 0.2.1 SSRF via Microsoft Teams Channel serviceUrl Poisoning

Nanobot prior to version 0.2.1 contains a server-side request forgery vulnerability in the Microsoft Teams channel handler that allows remote attackers to exfiltrate Bot Framework bearer tokens by supplying a forged activity with an attacker-controlled serviceUrl value. Attackers can poison the...

PT-2026-45561

Name of the Vulnerable Software and Affected Versions Nanobot versions prior to 0.2.1 Description A server-side request forgery SSRF issue exists in the Microsoft Teams channel handler. This occurs when a remote attacker provides a forged activity containing a malicious serviceUrl value. By sendi...