# CVE-2026-88023: GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB PHP Library

> An authenticated user can inject query operators into file IDs to read unauthorized file content or delete all chunks in a GridFS bucket.

- **Severity:** Medium 6.1 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/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:** Yes
- **Published:** 10 Sep 2026
- **Updated:** 10 Sep 2026
- **Also known as:** GHSA-8fxw-fmj8-xp7j

## What is CVE-2026-88023?

CVE-2026-88023 is a medium-severity SQL injection vulnerability in MongoDB PHP Library, 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 PHP Library 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 obtain stored file content beyond the intended target or cause all GridFS file chunks in the affected bucket to be removed, rendering stored file content unreadable. The affected rename operation may also rename a stored file other than the intended target.

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

## Which versions are affected by CVE-2026-88023?

4 open source packages ship an affected version, including mongodb/mongodb. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `mongodb/mongodb` | Packagist | From 1.1.0 | 1.24.5 |
| `mongodb/mongodb` | Packagist | From 1.1.0 | 1.24.5 |
| `mongodb/mongodb` | Packagist | From 2.0.0 | 2.4.2 |
| `mongodb/mongodb` | Packagist | From 2.0.0 | 2.4.2 |

Products: Mongodb Php Library.

## How do I fix CVE-2026-88023?

Upgrade mongodb/mongodb to a fixed version for your release line: 1.24.5 or 2.4.2.

## Is CVE-2026-88023 being exploited?

There is no known exploitation of CVE-2026-88023 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-88023 and fix it if it is affected.

What it is: CVE-2026-88023 is a medium-severity SQL injection vulnerability in MongoDB PHP Library, 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-2026-88023 in the wild and no public exploit code.

Affected packages and fixed versions:
- mongodb/mongodb (Packagist): affected from 1.1.0; fixed in 1.24.5
- mongodb/mongodb (Packagist): affected from 1.1.0; fixed in 1.24.5
- mongodb/mongodb (Packagist): affected from 2.0.0; fixed in 2.4.2
- mongodb/mongodb (Packagist): affected from 2.0.0; fixed in 2.4.2

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-2026-88023/ (Markdown: https://insights.sbomify.com/CVE-2026-88023/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-88023
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-88023
- OSV: https://osv.dev/vulnerability/CVE-2026-88023

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-88023/
Summaries are generated and may contain mistakes; the official description above is the record.