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No exploitation reported

CVE-2021-23372

No exploitation reported by the sources we read.

  • Published2021-04-13
  • WeaknessCWE-754

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2021-04-1320:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-23372?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-23372?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV · NVD
mongo-express
BranchAffectedFixed in
0.54≤ 0.54.0no fix published
Mongo-express project mongo-express
BranchAffectedFixed in
—all versionsno fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 3.14.4known since 2026-10-23
  • NVDCVSS 3.17.5read 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • NVDweakness (CWE)CWE-754read 2026-10-23
  • FIRST EPSSEPSS score0.9 %2026-11-03
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryMODERATE2021-10-06

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2021-04-13
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-m2r3-8492-vx59

Frequently asked questions

What is CVE-2021-23372?

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.

Is CVE-2021-23372 actively exploited?

Active exploitation of CVE-2021-23372 has not been confirmed. Its EPSS score was 0.9% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

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

CVE-2021-23372 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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