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Security: disallow blind SSRF to link-local IPs via URL unfurling

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This commit is contained in:
Jeremy Daer
2025-12-02 21:33:44 -08:00
parent 1babf3f9ed
commit 5667262d1c
2 changed files with 9 additions and 1 deletions
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lib/restricted_http/private_network_guard.rb
+1 -1
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@@ -16,7 +16,7 @@ module RestrictedHTTP
def private_ip?(ip)
IPAddr.new(ip).then do |ipaddr|
ipaddr.private? || ipaddr.loopback? || LOCAL_IP.include?(ipaddr)
ipaddr.private? || ipaddr.loopback? || ipaddr.link_local? || LOCAL_IP.include?(ipaddr)
end
rescue IPAddr::InvalidAddressError
true