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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.024 (83.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: +0.000
Affected products
- Browserslist Project
- Browserslist — versions 4.0.0, unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- snyk.io/vuln/SNYK-JS-BROWSERSLIST-1090194 (Exploit, Patch, Third Party Advisory)
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1277182 (Exploit, Patch, Third Party Advisory)
- github.com/browserslist/browserslist/blob/e82f32d1d4100d6bc79ea0b6b6a2d281a561e… (Broken Link)
- github.com/browserslist/browserslist/commit/c091916910dfe0b5fd61caad96083c6709b… (Patch, Third Party Advisory)
- github.com/browserslist/browserslist/pull/593 (Third Party Advisory)
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.