Vulnerability in Browserslist Project
CVE-2021-23364
The package browserslist from 4.0.0 and before 4.16.5 are vulnerable to Regular Expression Denial of Service (ReDoS) during parsing of queries.
Vulnerability class: ReDoS (Regular Expression Denial of Service)
EPSS: 0.024 (82.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Browserslist_project Browserslist
- N/a Browserslist — versions 4.0.0, unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- report@snyk.io (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
- report@snyk.io (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
- report@snyk.io (x_refsource_MISC, Broken Link)
- report@snyk.io (Patch, Third Party Advisory, x_refsource_MISC)
- report@snyk.io (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-23364?
- CVE-2021-23364 is a medium-severity vulnerability in Browserslist Project, classified under Inefficient Regular Expression Complexity. CVSS score: 5.3/10. Published 2021-04-28.
- How severe is CVE-2021-23364?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-23364 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.