CVE-2021-43138
HighPublic PoC
Published: 06 April 2022
Published
06 April 2022
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.0066
71.5th percentile
Risk Priority
16
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-43138 is a high-severity Prototype Pollution (CWE-1321) vulnerability in Async Project Async. Its CVSS base score is 7.8 (High).
Operationally, ranked in the top 28.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-1728
Vulnerability details
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.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
async project
async
≤ 2.6.4 · 3.0.0 — 3.2.2
fedoraproject
fedora
36, 37
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.