VDB
CVE-2021-43138
CVE-2021-43138
PUBLISHED
CVSS 7.800000190734863 HIGH
Prototype Pollution in async
Reported by mitre · Published April 6, 2022
async is fixed in 3.2.2 and 2.6.4 (npm)
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| async | npm | 3.2.2, 2.6.4 |
| async | async_project | 3.2.2, 2.6.4 |
Risk scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
| async_project | async | |
| npm | async | 0, 3.0.0 |
| n/a | n/a | * |
Timeline
- Apr 6, 2022 CVE Published
- Apr 9, 2022 EPSS Score (30 in total, the first dated here)
- Mar 9, 2026 Security Advisory (11 in total, the first dated here)
- Jul 18, 2026 Coalition ESS Score
- Nov 2, 2026 Distribution Patch (10 in total, the first dated here)
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2021-43138
vulnetix vdb fixes CVE-2021-43138Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2021-43138/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart
References
- FEDORA-2023-ce8943223c vendor-advisory
- FEDORA-2023-18fd476362 vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-43138 advisory
- https://github.com/advisories/GHSA-fwr7-v2mv-hh25 advisory