# CVE-2026-88031: GridFS data deletion via query-operator injection in file IDs in the MongoDB Go Driver

> An authenticated user can delete all GridFS file chunks by injecting query operators into file identifiers, causing data loss.

- **Severity:** Medium 6.1 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Sep 2026
- **Updated:** 10 Sep 2026
- **Also known as:** DEBIAN-CVE-2026-88031, GHSA-gf3f-xg7m-h8wp, UBUNTU-CVE-2026-88031

## What is CVE-2026-88031?

CVE-2026-88031 is a medium-severity SQL injection vulnerability in MongoDB Go Driver, published on 10 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Improper neutralization of special elements in data query logic in the GridFS component of the MongoDB Go Driver can cause a caller-supplied structured file identifier to be interpreted as a query condition rather than as a literal identifier. An authenticated user who can influence the identifier passed by an affected application may cause all GridFS file chunks in the affected bucket to be removed, rendering stored file content unreadable.

Weakness: CWE-943 (Improper Neutralization of Special Elements in Data Query Logic)

## Which versions are affected by CVE-2026-88031?

It affects 1 product.


Products: Mongodb Go Driver.

## How do I fix CVE-2026-88031?

No fix has been published for CVE-2026-88031 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-88031 being exploited?

There is no known exploitation of CVE-2026-88031 in the wild and no public exploit code.

## Other vulnerabilities in MongoDB Go Driver

- [CVE-2026-107324](https://insights.sbomify.com/CVE-2026-107324/): Application denial of service via integer overflow in BSON value-length validation in MongoDB Go Driver (high 8.2)
- [CVE-2026-107325](https://insights.sbomify.com/CVE-2026-107325/): Application denial of service via missing BSON array length validation in MongoDB Go Driver (high 8.2)
- [CVE-2026-81521](https://insights.sbomify.com/CVE-2026-81521/): Cross-database write retargeting via unvalidated dotted database name in Client.BulkWrite in the MongoDB Go Driver (high 7.1)
- [CVE-2021-20329](https://insights.sbomify.com/CVE-2021-20329/): Specific cstrings input may not be properly validated in the Go Driver (medium 6.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-88031 and fix it if it is affected.

What it is: CVE-2026-88031 is a medium-severity SQL injection vulnerability in MongoDB Go Driver, published on 10 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-88031 in the wild and no public exploit code.

Affected product: MongoDB Go Driver. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2026-88031/ (Markdown: https://insights.sbomify.com/CVE-2026-88031/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-88031
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-88031
- OSV: https://osv.dev/vulnerability/CVE-2026-88031

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-88031/
Summaries are generated and may contain mistakes; the official description above is the record.