Inefficient Regular Expression Complexity in chalk/ansi-regex

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2021-3807
StatePUBLISHED
Assigner@huntrdev
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-09-17 07:15:09 UTC
Updated2026-10-08 22:17:11 UTC
Descriptionansi-regex is vulnerable to Inefficient Regular Expression Complexity

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.035520000 probability, percentile 0.892530000 (date 2026-10-22)

Problem Types: CWE-1333 | CWE-1333 CWE-1333 Inefficient Regular Expression Complexity

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.0[email protected]Secondary7.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.0CNADECLARED7.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary7.8AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:N/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Ansi-regex Project Ansi-regex All All All All
Application Ansi-regex Project Ansi-regex 3.0.0 All All All
Application Ansi-regex Project Ansi-regex 5.0.0 All All All
Application Ansi-regex Project Ansi-regex 6.0.0 All All All
Application Oracle Communications Cloud Native Core Policy 1.15.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Chalk Chalk/ansi-regex affected unspecified 6.0.1 custom Not specified
CNA Chalk Chalk/ansi-regex affected unspecified 5.0.1 custom Not specified
CNA Chalk Chalk/ansi-regex unaffected 5.0.1 Not specified

References

ReferenceSourceLinkTags
Oracle Critical Patch Update Advisory - April 2022 af854a3a-2127-422b-91ae-364da2661108 www.oracle.com Patch, Third Party Advisory
Fix potential ReDoS (#37) · chalk/ansi-regex@8d1d7cd · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
huntr: Disclose & Fix Security Vulnerabilities in Open Source af854a3a-2127-422b-91ae-364da2661108 huntr.dev Exploit, Issue Tracking, Patch, Third Party Advisory
CVE-2021-3807 Node.js Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159554 Oracle Enterprise Linux Security Update for nodejs:16 (ELSA-2021-5171)
  • 159622 Oracle Enterprise Linux Security Update for nodejs:14 (ELSA-2022-0350)
  • 160094 Oracle Enterprise Linux Security Update for nodejs:16 (ELSA-2022-6449)
  • 160111 Oracle Enterprise Linux Security Update for nodejs and nodejs-nodemon (ELSA-2022-6595)
  • 179932 Debian Security Update for node-ansi-regex (CVE-2021-3807)
  • 239970 Red Hat Update for nodejs:16 security (RHSA-2021:5171)
  • 239986 Red Hat Update for rh-nodejs14-nodejs and rh-nodejs14-nodejs-nodemon (RHSA-2022:0041)
  • 240037 Red Hat Update for nodejs:14 security (RHSA-2022:0246)
  • 240051 Red Hat Update for nodejs:14 security (RHSA-2022:0350)
  • 240660 Red Hat Update for nodejs:16 (RHSA-2022:6449)
  • 240676 Red Hat Update for nodejs and nodejs-nodemon (RHSA-2022:6595)
  • 377422 Alibaba Cloud Linux Security Update for nodejs:14 (ALINUX3-SA-2022:0014)
  • 751759 SUSE Enterprise Linux Security Update for nodejs8 (SUSE-SU-2022:0563-1)
  • 751773 SUSE Enterprise Linux Security Update for nodejs12 (SUSE-SU-2022:0657-1)
  • 751781 OpenSUSE Security Update for nodejs12 (openSUSE-SU-2022:0657-1)
  • 751783 SUSE Enterprise Linux Security Update for nodejs8 (SUSE-SU-2022:0704-1)
  • 751801 SUSE Enterprise Linux Security Update for nodejs14 (SUSE-SU-2022:0715-1)
  • 751820 OpenSUSE Security Update for nodejs14 (openSUSE-SU-2022:0715-1)
  • 751824 OpenSUSE Security Update for nodejs8 (openSUSE-SU-2022:0704-1)
  • 751826 OpenSUSE Security Update for nodejs8 (openSUSE-SU-22022:20000-2)
  • 752142 SUSE Enterprise Linux Security Update for nodejs10 (SUSE-SU-2022:1717-1)
  • 754116 SUSE Enterprise Linux Security Update for SUSE Manager Client Tools (SUSE-SU-2023:2578-1)
  • 755764 SUSE Enterprise Linux Security Update for SUSE Manager Client Tools (SUSE-SU-2024:0487-1)
  • 940355 AlmaLinux Security Update for nodejs:16 (ALSA-2021:5171)
  • 940448 AlmaLinux Security Update for nodejs:14 (ALSA-2022:0350)
  • 940678 AlmaLinux Security Update for nodejs and nodejs-nodemon (ALSA-2022:6595)
  • 960322 Rocky Linux Security Update for nodejs:16 (RLSA-2021:5171)
  • 960531 Rocky Linux Security Update for nodejs and nodejs-nodemon (RLSA-2022:6595)
  • 960863 Rocky Linux Security Update for nodejs:14 (RLSA-2022:0350)
  • 980499 Nodejs (npm) Security Update for ansi-regex (GHSA-93q8-gq69-wqmw)

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