CVE-2021-23372

MEDIUMNVD 4.44.4—

4.4

All versions of package mongo-express are vulnerable to Denial of Service (DoS) when exporting an empty collection as CSV, due to an unhandled exception, leading to a crash.

CVSS v3: 4.4
EG Score: 4.4(medium)
EPSS: 54.0%
KEV: Not listed

Published

April 13, 2021

Last Modified

November 21, 2024

References (2)

report@snykhttps://snyk.io/vuln/SNYK-JS-MONGOEXPRESS-1085403
af854a3a-2127-422b-91ae-364da2661108https://snyk.io/vuln/SNYK-JS-MONGOEXPRESS-1085403

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
npm	mongo-express	—	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
mongo-express	—	—	—

Weakness Classification(1)

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

CWE-754

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
2026-05-26 18:24 UTCEG score recompute
2026-05-26 18:24 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 16:49 UTCepss_batch

Frequently asked(5)

What is CVE-2021-23372?

CVE-2021-23372 is a medium vulnerability published on April 13, 2021. All versions of package mongo-express are vulnerable to Denial of Service (DoS) when exporting an empty collection as CSV, due to an unhandled exception, leading to a crash.

When was CVE-2021-23372 disclosed?

CVE-2021-23372 was first published in the National Vulnerability Database on April 13, 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.

Is CVE-2021-23372 actively exploited?

CVE-2021-23372 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 54.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-23372?

CVE-2021-23372 has a CVSS v3 base score of 4.4 (NVD).

How do I remediate CVE-2021-23372?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-23372, 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-2021-23372

Explore →

Is Your Infrastructure Affected by CVE-2021-23372?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs