CVE-2021-3749

HIGHCVSS 7.5

7.5

axios is vulnerable to Inefficient Regular Expression Complexity

CVSS v3: 7.5
EG Score: —
EPSS: —
KEV: Not listed

Published

August 31, 2021

Last Modified

November 21, 2024

References (28)

Patch Availability(5)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	kiali-0:v1.24.7.redhat1-1.el8	2022-04-07	redhat
redhat	openshift4/ose-console:v4.10.0-202202240423.p0.gb6503ff.assembly.stream	2022-03-10	redhat
redhat	migration-toolkit-virtualization/mtv-ui-rhel8:2.2.0-60	2021-12-09	redhat
redhat	advanced-cluster-security/rhacs-rhel8-operator:3.67.0-3	2021-12-01	redhat
redhat	rhmtc/openshift-migration-ui-rhel8:v1.6.0-24	2021-09-29	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

npm(1)

Package	Vulnerable range	Fixed in	Dependents
axios	—	0.21.2	—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(5)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 8× in last 7d / 8× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 11:15 UTCEG score recompute
2026-05-26 11:15 UTCVendor advisory
2026-05-26 11:15 UTCEG score recompute
2026-05-26 11:15 UTCVendor advisory

Frequently asked(4)

What is CVE-2021-3749?

CVE-2021-3749 is a high vulnerability published on August 31, 2021. axios is vulnerable to Inefficient Regular Expression Complexity

When was CVE-2021-3749 disclosed?

CVE-2021-3749 was first published in the National Vulnerability Database on August 31, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

What is the CVSS score of CVE-2021-3749?

CVE-2021-3749 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2021-3749?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-3749, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-3749

Explore →

Is Your Infrastructure Affected by CVE-2021-3749?

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CVE-2021-3749

Published

Last Modified

References (28)

Patch Availability(5)

Affected Packages

Weakness Classification(2)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-3749?

Same vendor

Same CWE

CVE-2021-3749

📅 Published

🔄 Last Modified

🔗 References (28)

Patch Availability(5)

Affected Packages

Weakness Classification(2)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-3749?

🔗 Related CVEs(same vendor + same CWE)

Same vendor

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Published

Last Modified

References (28)

Frequently asked(4)

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