CVE-2026-73297 (GCVE-0-2026-73297)
Vulnerability from cvelistv5 – Published: 2026-08-12 16:31 – Updated: 2026-08-12 16:49
VLAI
EPSS
VEX
Title
Microsoft UFO: IPv6 transition address bypass of SSRF guard in URL validation
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::/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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 16:49 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/microsoft/UFO/security/advisor… | x_refsource_CONFIRM |
| https://github.com/microsoft/UFO/commit/96983c73e… | x_refsource_MISC |
| https://github.com/microsoft/UFO/releases/tag/v3.0.8 | x_refsource_MISC |
Impacted products
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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