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7ebf94158c
The assertNotPrivateUrl() function blocked standard loopback and link-local addresses but could be bypassed using IPv4-mapped IPv6 representations: - http://[::ffff:127.0.0.1]:8080/ → loopback bypass - http://[::ffff:169.254.169.254]:8080/ → metadata endpoint bypass - http://[::]:8080/ → all-interfaces bypass Node.js normalises these to [::ffff:7f00:1], [::ffff:a9fe:a9fe], and [::] respectively, none of which matched the existing regex patterns. Add two patterns to close the gap: - /^\[::ffff:/i catches all IPv4-mapped IPv6 addresses - /^\[::\]$/ catches the IPv6 all-zeros address Legitimate RFC1918 LAN URLs (192.168.x, 10.x, 172.16-31.x) remain allowed. |
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