matrix-org / matrix-org/matrix-spec

voip call events leak internal IP addresses

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security
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HTML
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2h 21m
Merged PRs (30d)
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Description

VoIP calling within Matrix (`m.call.invite`, `m.call.candidates`, `m.call.answer`) persists private call routing candidate IP addresses to the room history with every call, and they're there for ever.

We need to communicate the IP addresses to route the call, but that information would ideally not be stored in room history, or at very least would not be stored permanently.

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reviewing the Matrix specification entries for m.call.invite, m.call.candidates, and m.call.answer, focusing on how candidate IP addresses are persisted in room history. Determine a protocol-level approach that still communicates routing information while preventing permanent exposure, and define completion as the specification documenting that behavior clearly.

Written by the indexing model from the issue text.

Assessment

Domain
networking, security
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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