# CVE-2020-9483: SQL injection in Apache SkyWalking

> SQL injection in Apache SkyWalking GraphQL metadata queries allows attackers to access unexpected data when using H2, MySQL, or TiDB storage.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Jun 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-p9p3-c9pg-xjrh

## What is CVE-2020-9483?

CVE-2020-9483 is a high-severity SQL injection vulnerability in Apache SkyWalking, published on 30 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

**Resolved** When use H2/MySQL/TiDB as Apache SkyWalking storage, the metadata query through GraphQL protocol, there is a SQL injection vulnerability, which allows to access unpexcted data. Apache SkyWalking 6.0.0 to 6.6.0, 7.0.0 H2/MySQL/TiDB storage implementations don't use the appropriate way to set SQL parameters.

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2020-9483?

It affects 1 product.


Products: Apache Skywalking.

## How do I fix CVE-2020-9483?

No fix has been published for CVE-2020-9483 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-9483 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-9483 exists.

Public exploit code:

- PoC of SQL Injection vul(CVE-2020-9483,Apache SkyWalking) (github_poc): https://github.com/Neko-chanQwQ/CVE-2020-9483
- CVE-2020-9483 OR CVE-2020-13921 (github_poc): https://github.com/shanika04/apache_skywalking
- SkyWalking SQLI (nuclei): http/cves/2020/CVE-2020-9483.yaml

## Other vulnerabilities in Apache SkyWalking

- [CVE-2020-13921](https://insights.sbomify.com/CVE-2020-13921/): SQL Injection in Apache SkyWalking (critical 9.8)
- [CVE-2026-30778](https://insights.sbomify.com/CVE-2026-30778/): SkyWalking OAP /debugging/config/dump endpoint may leak sensitive configuration information (high 7.5)
- [CVE-2025-54057](https://insights.sbomify.com/CVE-2025-54057/): Apache SkyWalking: Stored XSS vulnerability (medium 6.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-9483 and fix it if it is affected.

What it is: CVE-2020-9483 is a high-severity SQL injection vulnerability in Apache SkyWalking, published on 30 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-9483 exists.

Affected product: Apache SkyWalking. 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-2020-9483/ (Markdown: https://insights.sbomify.com/CVE-2020-9483/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-9483
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-9483
- OSV: https://osv.dev/vulnerability/CVE-2020-9483

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-9483/
Summaries are generated and may contain mistakes; the official description above is the record.