Vulnerability · Published Apr 6, 2022 · Assigned by mitre
CVE-2021-43138
High 7.8
In plain English
A high-severity security flaw in the async package (npm). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.3% (higher than 89% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.8High
Exploit odds (30 days)3.3%top 11.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In Async before 2.6.4 and 3.x before 3.2.2, a malicious user can obtain privileges via the mapValues() method, aka lib/internal/iterator.js createObjectIterator prototype pollution.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | async | 3.2.2 | GHSA-fwr7-v2mv-hh25 |
| npm | async | 2.6.4 | GHSA-fwr7-v2mv-hh25 |
Affected products (as reported)
References
- https://github.com/caolan/async/blob/master/lib/internal/iterator.js
- https://github.com/caolan/async/blob/master/lib/mapValuesLimit.js
- https://jsfiddle.net/oz5twjd9/
- https://github.com/caolan/async/commit/e1ecdbf79264f9ab488c7799f4c76996d5dca66d
- https://github.com/caolan/async/blob/v2.6.4/CHANGELOG.md#v264
- https://github.com/caolan/async/pull/1828
- https://github.com/caolan/async/compare/v2.6.3...v2.6.4
- FEDORA-2023-ce8943223c vendor-advisory
- FEDORA-2023-18fd476362 vendor-advisory
- https://security.netapp.com/advisory/ntap-20240621-0006/