CVE-2021-43138
Prototype Pollution in async
7.8
HIGH
CVSS 3.1
EPSS 0.66%
Description
A vulnerability exists in Async through 3.2.1 for 3.x and through 2.6.3 for 2.x (fixed in 3.2.2 and 2.6.4), which could let a malicious user obtain privileges via the `mapValues()` method.
How to fix CVE-2021-43138
To remediate CVE-2021-43138, upgrade the affected package to a fixed version below.
- npm/async—upgrade to 3.2.2 or later
Is CVE-2021-43138 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 3.0.0, < 3.2.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |