CVE-2021-43138: Prototype Pollution in async

April 6, 2022 (updated November 7, 2023)

A vulnerability exists in Async through 3.2.1 (fixed in 3.2.2), which could let a malicious user obtain privileges via the mapValues() method.

References

github.com/advisories/GHSA-fwr7-v2mv-hh25
github.com/caolan/async/blob/master/lib/internal/iterator.js
github.com/caolan/async/blob/master/lib/mapValuesLimit.js
github.com/caolan/async/commit/e1ecdbf79264f9ab488c7799f4c76996d5dca66d
jsfiddle.net/oz5twjd9/
nvd.nist.gov/vuln/detail/CVE-2021-43138

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