# GHSA-74cr-77xc-8g6r: Prototype Pollution in @apollo/gateway

> Prototype pollution in Apollo Gateway allows attackers to alter object prototypes via GraphQL queries, potentially causing DoS or RCE.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 13 Jun 2019

## What is GHSA-74cr-77xc-8g6r?

GHSA-74cr-77xc-8g6r is a vulnerability in @apollo/gateway, published on 13 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Versions of `@apollo/gateway` prior to 0.6.2 are vulnerable to Prototype Pollution. The package uses deepMerge() to merge objects, which may allow attackers to alter the Object prototype through queries with GraphQL aliases. Carefully constructed payloads can override properties of all objects in the application. This may lead to Denial of Service or may be chained with other vulnerabilities leading to Remote Code Execution.

## Recommendation

Upgrade to version 0.6.2 or later.

## Which versions are affected by GHSA-74cr-77xc-8g6r?

2 open source packages ship an affected version, including @apollo/gateway.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `@apollo/gateway` | npm | All versions | 0.6.2 |
| `@apollo/gateway` | npm | All versions | 0.6.2 |

## How do I fix GHSA-74cr-77xc-8g6r?

Upgrade @apollo/gateway to 0.6.2 or later.

## Is GHSA-74cr-77xc-8g6r being exploited?

There is no known exploitation of GHSA-74cr-77xc-8g6r in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GHSA-74cr-77xc-8g6r and fix it if it is affected.

What it is: GHSA-74cr-77xc-8g6r is a vulnerability in @apollo/gateway, published on 13 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of GHSA-74cr-77xc-8g6r in the wild and no public exploit code.

Affected packages and fixed versions:
- @apollo/gateway (npm): affected all versions; fixed in 0.6.2
- @apollo/gateway (npm): affected all versions; fixed in 0.6.2

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/GHSA-74cr-77xc-8g6r/ (Markdown: https://insights.sbomify.com/GHSA-74cr-77xc-8g6r/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GHSA-74cr-77xc-8g6r

---
From sbomify Insights: https://insights.sbomify.com/GHSA-74cr-77xc-8g6r/
Summaries are generated and may contain mistakes; the official description above is the record.