CVE Watch22 jul 2026

CVE-2026-49139

Nanobot prior to version 0.2.1 contains a server-side request forgery vulnerability in the Microsoft Teams channel handler that allows remot

CVSS

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Sin CVSS

EPSS

0.4%

p32

KEV

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Exploit Today

0-100

Publicado: 1 jun 2026 · Última mod.: 22 jul 2026 · CWE-918

EPSS · 30d

0.4%EPSS · 30 días0.4%

2026-08-232026-09-20

Descripción técnica

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 stored conversation reference by sending a crafted inbound activity to the Teams webhook, causing subsequent bot replies to transmit token-bearing Authorization header requests to an attacker-controlled host.

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