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TI-2025-13782 CVE-2025-15104 · GHSA-fccg-7w3p-w66f

Nu Html Checker (validator.nu) - Restriction bypass vulnerability allowing local SSRF

Priority HIGH 70

Nu Html Checker (validator.nu) contains a restriction bypass that allows remote attackers to make the server perform arbitrary HTTP/HTTPS requests to internal resources, including localhost services.

CVSS 4.0MEDIUM 6.9· Network · No auth · No interaction · EPSS 0.00465 · Published 2026-01-16 · No fix listed CWE-918

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