# CVE-2026-25754: AdonisJS multipart body parsing has Prototype Pollution issue

> Remote attackers can manipulate object prototypes via multipart form-data parsing in AdonisJS, potentially leading to code execution or privilege escalation.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 6 Feb 2026
- **Updated:** 9 Feb 2026
- **Also known as:** GHSA-f5x2-vj4h-vg4c

## What is CVE-2026-25754?

CVE-2026-25754 is a high-severity vulnerability in adonisjs core, published on 6 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

AdonisJS is a TypeScript-first web framework. Prior to versions 10.1.3 and 11.0.0-next.9, a prototype pollution vulnerability in AdonisJS multipart form-data parsing may allow a remote attacker to manipulate object prototypes at runtime. This issue has been patched in versions 10.1.3 and 11.0.0-next.9.

Weakness: CWE-1321 (Improperly Controlled Modification of Object Prototype Attributes)

## Which versions are affected by CVE-2026-25754?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `@adonisjs/bodyparser` | npm | All versions | 10.1.3 |
| `@adonisjs/bodyparser` | npm | All versions | 10.1.3 |
| `@adonisjs/bodyparser` | npm | From 11.0.0-next.0 | 11.0.0-next.9 |
| `@adonisjs/bodyparser` | npm | From 11.0.0-next.0 | 11.0.0-next.9 |

Products: Adonisjs Bodyparser.

## How do I fix CVE-2026-25754?

Upgrade @adonisjs/bodyparser to a fixed version for your release line: 10.1.3 or 11.0.0-next.9.

## Is CVE-2026-25754 being exploited?

There is no known exploitation of CVE-2026-25754 in the wild and no public exploit code.

## Other vulnerabilities in adonisjs core

- [CVE-2026-25762](https://insights.sbomify.com/CVE-2026-25762/): AdonisJS vulnerable to Denial of Service (DoS) via Unrestricted Memory Buffering in PartHandler during File Type Detection (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-25754 and fix it if it is affected.

What it is: CVE-2026-25754 is a high-severity vulnerability in adonisjs core, published on 6 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-25754 in the wild and no public exploit code.

Affected packages and fixed versions:
- @adonisjs/bodyparser (npm): affected all versions; fixed in 10.1.3
- @adonisjs/bodyparser (npm): affected all versions; fixed in 10.1.3
- @adonisjs/bodyparser (npm): affected from 11.0.0-next.0; fixed in 11.0.0-next.9
- @adonisjs/bodyparser (npm): affected from 11.0.0-next.0; fixed in 11.0.0-next.9

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-2026-25754/ (Markdown: https://insights.sbomify.com/CVE-2026-25754/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-25754
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-25754
- OSV: https://osv.dev/vulnerability/CVE-2026-25754

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-25754/
Summaries are generated and may contain mistakes; the official description above is the record.