openai / openai/tiktoken

[Security] Reachable Rust panic (denial of service) when tokenizing with an untrusted encoder missing single-byte tokens

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Dominant language
Python
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Description

Hi, is there a place I can report a potential security vulnerability please?

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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

The issue body only asks where to report a potential security vulnerability and names no file, test, or entry point. Start by confirming the reported Rust tokenization panic and the appropriate vulnerability-reporting process; done is not defined until the affected code and acceptance criteria are clarified.

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
20/100

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