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Branches recursion depth #806

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Oct 30, 2024
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Branches recursion depth #806

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10 changes: 10 additions & 0 deletions csaf_2.0/guidance/faq.md
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Expand Up @@ -73,3 +73,13 @@ Please see our advise on [CDNs](./cdn.md).
### Where can I find a list of all parties that produce CSAF?

Currently, there is no such list available. However, [BSI hosts a list with metadata of known parties](https://wid.cert-bund.de/.well-known/csaf-aggregator/aggregator.json) that produce CSAF files and distribute them in a way that they are automatically retrievable. This list is called a CSAF lister.

## CSAF Internals

### What is the maximum recursion depth allowed in the product tree for `branches`?

Even though it is not formally noted in CSAF 2.0, the recursion of `branches` is limited to 25 repetitions. Therefore, the longest path to a leaf is:

```
/product_tree/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/branches[]/product
```
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