# CVE-2026-120567: ExecuteUpdate may evaluate caller-supplied values as MongoDB expressions

> CVE-2026-120567: ExecuteUpdate may evaluate caller-supplied values as MongoDB expressions. CVSS 5.4 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-120567
Last updated: 2026-11-03T20:18:12Z

- Published: 2026-11-03 19:36 UTC · Updated: 2026-11-03 20:18 UTC · Assigner: mongodb
- CVSS: 5.4 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- EPSS: 0.15%, 4th percentile (scored 2026-11-04)
- CISA KEV: no
- CWE: CWE-943

## Description

The MongoDB Entity Framework Core provider does not neutralize special elements when it places a caller-supplied value into a bulk update that is expressed as a databasea result, a value supplied as plain data may be interpreted by the database as expression syntax. A part value through normal application input may causeunintended modification of fields in the records the application is updating, and may cause data already held in those records to be relocated into other fields of the same record.

## Affected vendors and products

- MongoDB: Entity Framework Core Provider

## Tracked companies

- [MongoDB Atlas](https://rewindex.com/company/mongodb-atlas.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-120567)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-120567)
- [https://jira.mongodb.org/browse/EF-478](https://jira.mongodb.org/browse/EF-478)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-120567 · Markdown: https://rewindex.com/cve/CVE-2026-120567.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-120567 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T15:28:17.059Z