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OpenAdvisories
Medium · 5.0 CVE-2026-49138 EUVD-2026-33757GHSA-434r-7c99-hwf3PYSEC-2026-3580

Nanobot < 0.2.1 SSRF via web_fetch Tool Redirect Following

Published Jun 1, 2026 · Updated Nov 8, 2026 · Assigned by VulnCheck

Description

Nanobot prior to version 0.2.1 contains a server-side request forgery vulnerability in the web_fetch tool that allows remote attackers to reach internal or private network hosts by supplying a URL that redirects to a loopback or private address via a 3xx Location header. Attackers can exploit the automatic HTTP redirect following behavior in the httpx library to bypass initial URL validation and cause the runtime to send outbound requests to internal hosts before final resolved URL validation is applied.

Affected products

VendorProductAffectedFixed
HKUDS nanobot < 0.2.1 0.2.1

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI nanobot-ai < 0.2.1 0.2.1 GHSA-434r-7c99-hwf3

References