CVE-2019-10758: MongoDB mongo-express Remote Code Execution Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 10 Dec 2021, 717 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 84.7%
EPSS score, percentile 99.7 of all scored records
- How severe?
- 9.9 Critical
CVSS v3.1 base score, from CISA's enrichment of the record
- What should I do?
CISA deadline 10 Jun 2022. Apply updates per vendor instructions.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected
- All versions prior to version 0.54.0
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
What to do
Required action, set by CISA
Apply updates per vendor instructions.
CISA due date for this action: 10 June 2022.
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | All versions prior to version 0.54.0 |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
About this vulnerability
mongo-express before 0.54.0 is vulnerable to Remote Code Execution via endpoints that uses the `toBSON` method.
Summary: CISA's KEV catalog, as of 28 Oct 2026.
- CISA added CVE-2019-10758 to its Known Exploited Vulnerabilities (KEV) catalog on 10 Dec 2021.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 10 Jun 2022.
- The CVE record was published on 24 Dec 2019, 717 days before it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 9.9 (Critical), taken from CISA's enrichment of the record.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 84.7% (percentile 99.7), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.
Description
mongo-express before 0.54.0 is vulnerable to Remote Code Execution via endpoints that uses the `toBSON` method. A misuse of the `vm` dependency to perform `exec` commands in a non-safe environment.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Weakness
- CWE-94: Improper Control of Generation of Code ('Code Injection')
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| 24 Dec 2019 | CVE record published |
| 10 Dec 2021 | Added to CISA KEV |
| 10 Jun 2022 | CISA due date for the required action |
| 21 Oct 2025 | CVE record last updated |
References
More exploited MongoDB vulnerabilities
- CVE-2025-14847: MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency Vulnerability