# CVE-2021-47715: Hasura GraphQL 1.3.3 Server-Side Request Forgery via Remote Schema Injection

> Attackers can inject malicious remote schema URLs to access internal network resources via the add_remote_schema endpoint.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 22 Dec 2025
- **Updated:** 14 Aug 2026
- **Also known as:** GHSA-8p9c-w6fc-vjgh

## What is CVE-2021-47715?

CVE-2021-47715 is a medium-severity server-side request forgery vulnerability in Hasura GraphQL, published on 22 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Hasura GraphQL 1.3.3 contains a server-side request forgery vulnerability that allows attackers to inject arbitrary remote schema URLs through the add_remote_schema endpoint. Attackers can exploit the vulnerability by sending crafted POST requests to the /v1/query endpoint with malicious URL definitions to potentially access internal network resources.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2021-47715?

It affects 1 product.


Products: Hasura Graphql Engine.

## How do I fix CVE-2021-47715?

No fix has been published for CVE-2021-47715 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-47715 being exploited?

There is no known exploitation of CVE-2021-47715 in the wild and no public exploit code.

## Other vulnerabilities in Hasura GraphQL

- [CVE-2021-47748](https://insights.sbomify.com/CVE-2021-47748/): Hasura GraphQL 1.3.3 - Remote Code Execution (critical 9.3)
- [CVE-2022-46792](https://insights.sbomify.com/CVE-2022-46792/): Missing authorization in n/a (high 8.8)
- [CVE-2021-47713](https://insights.sbomify.com/CVE-2021-47713/): Hasura GraphQL 1.3.3 Denial of Service via Malicious GraphQL Query (high 8.7)
- [CVE-2023-27588](https://insights.sbomify.com/CVE-2023-27588/): Unauthenticated path traversal vulnerability in Hasura GraphQL Engine (high 7.5)
- [CVE-2019-1020015](https://insights.sbomify.com/CVE-2019-1020015/): Auth bypass in graphql-engine (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-47715 and fix it if it is affected.

What it is: CVE-2021-47715 is a medium-severity server-side request forgery vulnerability in Hasura GraphQL, published on 22 Dec 2025. 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-2021-47715 in the wild and no public exploit code.

Affected product: Hasura GraphQL. 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-2021-47715/ (Markdown: https://insights.sbomify.com/CVE-2021-47715/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-47715
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-47715
- OSV: https://osv.dev/vulnerability/CVE-2021-47715

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-47715/
Summaries are generated and may contain mistakes; the official description above is the record.