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GHSA-mwcw-c2x4-8c55

Predictable results in nanoid generation when given non-integer values

Source: GitHub Advisory Database (reviewed) Moderate CVE-2024-55565

Packages

EcosystemPackageAffectedFixed in
npm nanoid >= 4.0.0, < 5.0.9 5.0.9
npm nanoid < 3.3.8 3.3.8

Details

As written in the advisory (Markdown source, shown as plain text).

When nanoid is called with a fractional value, there were a number of undesirable effects: 1. in browser and non-secure, the code infinite loops on while (size--) 2. in node, the value of poolOffset becomes fractional, causing calls to nanoid to return zeroes until the pool is next filled 3. if the first call in node is a fractional argument, the initial buffer allocation fails with an error Version 3.3.8 and 5.0.9 are fixed.

References

External links from the advisory. They lead to third-party sites.