CVE-2021-23364: browserslist_project browserslist
CVSS: 5.3v3.1MediumModified
AliasesUBUNTU-CVE-2021-23364DEBIAN-CVE-2021-23364GHSA-w8qv-6jwh-64r5CGA-3v4x-xcpm-h9cpCGA-6vv4-5mm4-gxpwCGA-9c98-g94p-vcv7CGA-f74h-v4mp-5p8qCGA-fvmj-c9p9-v9h5CGA-fxvj-5pv5-7p4wCGA-j64h-fj9c-xxppCGA-v9x4-9rrv-h76qCGA-w57h-393p-4c7cCGA-wc63-f2wm-33xmCGA-wjwx-m65x-9vcmCGA-x9w5-9p27-4656
Published 28-04-2021Last modified 17-09-2024
Vulnerability summary
CVE-2021-23364 is a medium (CVSS 5.3) vulnerability in browserslist_project browserslist. EPSS estimates a 2.48% chance of exploitation in the next 30 days, higher than 84.3% of scored vulnerabilities. 2 public exploits are recorded.
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)EPSS score
2.48%
0%100%
Low · +0.03 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference
Advisory lineage
Upstream 0 · Downstream 0 · Related 1Timeline
- 28-04-2021PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
7 scores · 6 sources · 2 versionsMedium 5.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:PSourcesAll 6 agree
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- OSV · NpmEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- OSV · ChainguardEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
2.48%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
+0.03 pp
From 2.45% on 18-09-2026
18-09-202618-10-2026
EPSS score2.48%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (snyk.io)
Maturity: unknown
Exploit Reference (snyk.io)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Chainguard6 products
- arangodb-3.11< 3.11.14.5-r15
- arangodb-3.12< 3.12.9.4-r28
- py3.10-captum< 0.9.0-r1
- py3.11-captum< 0.9.0-r1
- py3.12-captum< 0.9.0-r1
Browserslist_project1 product
- browserslist≥ 4.0.0, < 4.16.5
Debian1 product
- node-browserslist< 4.16.3+~cs5.4.72-2
Npm1 product
- browserslist≥ 4.0.0, < 4.16.5
Ubuntu1 product
- node-browserslistAll versions (No fix recorded)
5 vendors · 10 products
References
9 links- snyk.io/vuln/SNYK-JS-BROWSERSLIST-1090194X Refsource MISCREPORTWEBFIXExploitPatchThird Party Advisory
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1277182X Refsource MISCREPORTWEBFIXExploitPatchThird Party Advisory
- github.com/browserslist/browserslist/commit/c091916910dfe0b5fd61caad96083c6709b02d98X Refsource MISCREPORTWEBFIXPatchThird Party Advisory
