A Regular Expression Denial of Service (ReDoS) flaw was found in kangax html-minifier 4.0.0 because of the reCustomIgnore regular expression.
CVE-2022-37620
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-10-31. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 61.8%
- KEV
- Not listed
Published
October 31, 2022
Last Modified
June 1, 2025
References (7)
- cve@mitrehttps://github.com/kangax/html-minifier/blob/51ce10f4daedb1de483ffbcccecc41be1c873da2/src/htmlminifier.js#L1338
- cve@mitrehttps://github.com/kangax/html-minifier/blob/51ce10f4daedb1de483ffbcccecc41be1c873da2/src/htmlminifier.js#L294
- cve@mitrehttps://github.com/kangax/html-minifier/issues/1135
- cve@mitrehttps://security.snyk.io/vuln/SNYK-JS-HTMLMINIFIER-3091181
- af854a3a-2127-422b-91ae-364da2661108https://github.com/kangax/html-minifier/blob/51ce10f4daedb1de483ffbcccecc41be1c873da2/src/htmlminifier.js#L1338
- af854a3a-2127-422b-91ae-364da2661108https://github.com/kangax/html-minifier/blob/51ce10f4daedb1de483ffbcccecc41be1c873da2/src/htmlminifier.js#L294
- af854a3a-2127-422b-91ae-364da2661108https://github.com/kangax/html-minifier/issues/1135
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| npm | html-minifier | — | ghsa |
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 |
|---|---|---|---|
| html-minifier | — | — | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 43× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:25 UTCEPSS rescore
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- 2026-06-11 03:39 UTCOSV refresh
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- 2026-05-25 12:59 UTCEG score recompute
- 2026-05-25 12:59 UTCGHSA enrichment
- 2026-05-24 16:51 UTCEPSS rescore
Related CVEs(same CWE)
Same CWE
10 shownCWE-400
Frequently asked(5)
What is CVE-2022-37620?
When was CVE-2022-37620 disclosed?
Is CVE-2022-37620 actively exploited?
What is the CVSS score of CVE-2022-37620?
How do I remediate CVE-2022-37620?
Dependency Blast Radius
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