CVE-2020-24391
CriticalRemote code execution in mongo-express
Published Apr 13, 2021 · Updated Jul 9, 2026 · Also known as GHSA-hxmg-hm46-cf62
Key Facts
Patch immediately- CVE-2020-24391 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Mongo-Express (Mongo-Express Project), mongodb-query-parser (npm).
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 75% probability of exploitation in the next 30 days.
- Fixed versions are available, including Mongo-Express <=0.54.0, mongodb-query-parser 2.0.0, Mongo-Express 0.54.0.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
75%
Higher than 99.4% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
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Description
mongo-express before 1.0.0 offers support for certain advanced syntax but implements this in an unsafe way. NOTE: this may overlap CVE-2019-10769.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Mongo-ExpressMongo-Express Project | See advisory | 0.54.0 |
| mongodb-query-parsernpm | See advisory | 2.0.0 |
Patched Releases
Mongo-Express
<=0.54.0
mongodb-query-parser
2.0.0
Timeline
Publicly disclosed
Apr 13, 2021
Last updated
Jul 9, 2026
Weakness Type
- CWE-20 Improper Input Validation
References
FAQ
Common Questions.
mongo-express before 1.0.0 offers support for certain advanced syntax but implements this in an unsafe way.
Affected: Mongo-Express (Mongo-Express Project); mongodb-query-parser (npm). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Mongo-Express <=0.54.0, mongodb-query-parser 2.0.0, Mongo-Express 0.54.0.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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