Skip to content
Patch Next
Sign inAdd to your agent

← Actionable
Medium, CVSS 4.4amended

Denial of Service (DoS) in mongo-express

CVE-2021-23372GHSA-m2r3-8492-vx59

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

Add to your agent

Affected packages

  • npm mongo-express

    Affected
    <= 0.54.0
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
4.4 · CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
EPSS
  • CVE-2021-23372: 0.91% estimated exploitation activity in the next 30 days; percentile 60.01 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

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.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 2 · amended ·

    Amended from ghsa record GHSA-m2r3-8492-vx59

  2. Revision 1 · created ·

    Published from osv record GHSA-m2r3-8492-vx59

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2021-23372

Advisory: Denial of Service (DoS) in mongo-express
IDs: CVE-2021-23372, GHSA-m2r3-8492-vx59
Record: https://patchnext.com/advisories/cve-2021-23372 (revision 2, source checked 26 Oct 2026, 12:21 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 4.4)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm mongo-express: affected <= 0.54.0

## Suggested inspection (read-only)
- `npm ls mongo-express --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on mongo-express.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-m2r3-8492-vx59 (OSV record GHSA-m2r3-8492-vx59 lists affected ranges: npm mongo-express >=0 <=0.54.0)
- Verified: https://github.com/advisories/GHSA-m2r3-8492-vx59 (GitHub-reviewed advisory GHSA-m2r3-8492-vx59 lists affected ranges: npm mongo-express >=0 <=0.54.0)

Commands are suggestions: review each one before running it.

Loading voting…