RGB-Tools / RGB-Tools/rust-lightning

RUSTSEC-2026-0098: Name constraints for URI names were incorrectly accepted

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Dominant language
Rust
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Forks
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Description

Name constraints for URI names were incorrectly accepted

Details
Package rustls-webpki
Version 0.101.7
Date 2026-04-14
Patched versions >=0.103.12, <0.104.0-alpha.1,>=0.104.0-alpha.6

Name constraints for URI names were ignored and therefore accepted.

Note this library does not provide an API for asserting URI names, and URI name constraints are otherwise not implemented. URI name constraints are now rejected unconditionally.

Since name constraints are restrictions on otherwise properly-issued certificates, this bug is reachable only after signature verification and requires misissuance to exploit.

This vulnerability is identified as GHSA-965h-392x-2mh5. Thank you to @1seal for the report.

See advisory page for additional details.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  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 checking whether this repository uses rustls-webpki 0.101.7 or another affected version. Compare the dependency with the patched versions listed in the advisory and determine how this repository tracks security updates. Done means the repository's dependency state no longer exposes the affected version, with any applicable existing checks passing.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
security
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
35/100

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