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InetAddressFilter.externalAddresses does not exclude special purpose addresses from RFC 6890 #50668

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InetAddressFilter.externalAddresses does not exclude special purpose addresses from RFC 6890#50668
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philwebb
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type: bugA general bug
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4.1.0

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@philwebb
philwebb
opened on Jun 2, 2026

The InetAddressFilter introduced in Spring Boot 4.1 includes an externalAddresses() method which should filter special purpose addresses as defined in RFC 6890, but currently does not.

Credit to @ghosttT0 for reporting this issue

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  1. philwebb
    self-assigned this
    on Jun 2, 2026
  2. philwebb
    added
    type: bugA general bug
    on Jun 2, 2026
  3. philwebb
    closed this as completedin 739daa7on Jun 2, 2026
  4. philwebb
    added this to the 4.1.0 milestone on Jun 2, 2026
  5. pull
    added a commit that references this issue on Jun 2, 2026

    Filter special purpose IPs (RFC 6890) in `externalAddresses()`

    739daa7
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