---
id: CVE-2026-73297
title: >-
  Microsoft UFO open-source framework for intelligent automation across devices
  and platforms
summary: >-
  Microsoft UFO open-source framework for intelligent automation across devices
  and platforms. Prior to 3.0.8, _is_blocked_ip in ufo/utils/url_security.py did
  not block NAT64 prefixes 64:ff9b::/96 and 64:ff9b:1::/48, the 6to4 prefix
  2002::…
severity: none
cwe:
  - CWE-918
published: '2026-08-12'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T20:05:53.723'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73297'
references:
  - url: >-
      https://github.com/microsoft/UFO/commit/96983c73ed09e884a5f1d7ff8936c953b234b684
    label: security-advisories@github.com
  - url: 'https://github.com/microsoft/UFO/releases/tag/v3.0.8'
    label: security-advisories@github.com
  - url: 'https://github.com/microsoft/UFO/security/advisories/GHSA-7hrg-r8xr-p8gr'
    label: security-advisories@github.com
  - url: 'https://github.com/microsoft/UFO/security/advisories/GHSA-7hrg-r8xr-p8gr'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.02903
epssPercentile: 0.86401
ingestedAt: '2026-09-18T20:51:25.604Z'
---

## Overview

Microsoft UFO open-source framework for intelligent automation across devices and platforms. Prior to 3.0.8, _is_blocked_ip in ufo/utils/url_security.py did not block NAT64 prefixes 64:ff9b::/96 and 64:ff9b:1::/48, the 6to4 prefix 2002::/16, or the Teredo prefix 2001::/32 and did not re-check embedded IPv4 destinations, allowing an unauthenticated remote attacker who can influence URLs processed by validate_url to bypass the SSRF guard and reach cloud metadata, internal services, or localhost. This issue is fixed in version 3.0.8.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.