# CVE-2026-8200: Schema validation log messages may not redact user data

> Attackers with log access can view unredacted user data in MongoDB server logs when schema validation fails during updates or inserts.

- **Severity:** Medium 4.8 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 13 May 2026
- **Updated:** 13 May 2026
- **Also known as:** BIT-mongodb-2026-8200, GHSA-595w-9635-gr7c, MINI-2jxv-f9mf-rm4x, MINI-4m24-pp3x-rxph, MINI-vqhv-wrgg-x675, UBUNTU-CVE-2026-8200

## What is CVE-2026-8200?

CVE-2026-8200 is a medium-severity vulnerability in Mongodb Mongodb, published on 13 May 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

When schema validation is enabled on a collection and an update or insert would violate the collection's schema, the local server log message generated may not have all user data redacted. 

This issue impacts MongoDB Server v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.

Weakness: CWE-532 (Insertion of Sensitive Information into Log File)

## Which versions are affected by CVE-2026-8200?

1 open source package ship an affected version, including mongodb. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `mongodb` | Bitnami | From 7.0.0 | 7.0.34, 8.0.23, 8.2.9, 8.3.2 |

Products: Mongodb Mongodb.

## How do I fix CVE-2026-8200?

Upgrade mongodb to a fixed version for your release line: 7.0.34, 8.0.23, 8.2.9 or 8.3.2.

## Is CVE-2026-8200 being exploited?

There is no known exploitation of CVE-2026-8200 in the wild and no public exploit code.

## Other vulnerabilities in Mongodb Mongodb

- [CVE-2025-14847](https://insights.sbomify.com/CVE-2025-14847/): MongoDB and MongoDB Server Improper Handling of Length Parameter Inconsistency (high 8.7, exploited in the wild)
- [CVE-2026-82067](https://insights.sbomify.com/CVE-2026-82067/): Auth bypass in MongoDB Server (critical 9.2)
- [CVE-2026-13072](https://insights.sbomify.com/CVE-2026-13072/): MongoDB Improper Input Validation in Compute Mode External Data Processing Leading to Memory Corruption (critical 9.2)
- [CVE-2017-15535](https://insights.sbomify.com/CVE-2017-15535/): Denial of service in n/a (critical 9.1)
- [CVE-2026-18691](https://insights.sbomify.com/CVE-2026-18691/): Improper Authentication in MongoDB Intra-Cluster Connections Allows Credential Exposure (critical 9.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-8200 and fix it if it is affected.

What it is: CVE-2026-8200 is a medium-severity vulnerability in Mongodb Mongodb, published on 13 May 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2026-8200 in the wild and no public exploit code.

Affected packages and fixed versions:
- mongodb (Bitnami): affected from 7.0.0; fixed in 7.0.34, 8.0.23, 8.2.9, 8.3.2

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-8200/ (Markdown: https://insights.sbomify.com/CVE-2026-8200/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-8200
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-8200
- OSV: https://osv.dev/vulnerability/CVE-2026-8200

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-8200/
Summaries are generated and may contain mistakes; the official description above is the record.