Prototype Pollution in Async_project Async
CVE-2021-43138
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.
Vulnerability class: Prototype Pollution
EPSS: 0.033 (87.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Async_project Async
- Fedoraproject Fedora — versions 36, 37
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (Third Party Advisory, Release Notes)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org
Frequently asked questions
- What is CVE-2021-43138?
- CVE-2021-43138 is a high-severity vulnerability in Async_project Async, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 7.8/10. Published 2022-04-06.
- How severe is CVE-2021-43138?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-43138 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.