# CVE-2026-33756: Saleor Affected by Denial of Service via Unbounded GraphQL Query Batching

> Unauthenticated attackers can cause denial of service by sending unbounded GraphQL query batches, exhausting server resources.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Apr 2026
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-24jw-f244-qfpp

## What is CVE-2026-33756?

CVE-2026-33756 is a high-severity denial of service vulnerability in saleor, published on 8 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Saleor is an e-commerce platform. From 2.0.0 to before 3.23.0a3, 3.22.47, 3.21.54, and 3.20.118, Saleor supports query batching by submitting multiple GraphQL operations in a single HTTP request as a JSON array but wasn't enforcing any upper limit on the number of operations. This allowed an unauthenticated attacker to send a single HTTP request many operations (bypassing the per query complexity limit) to exhaust resources. This vulnerability is fixed in 3.23.0a3, 3.22.47, 3.21.54, and 3.20.118.

Weakness: CWE-770 (Allocation of Resources Without Limits or Throttling)

## Which versions are affected by CVE-2026-33756?

It affects 1 product.


Products: Saleor Saleor.

## How do I fix CVE-2026-33756?

No fix has been published for CVE-2026-33756 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-33756 being exploited?

There is no known exploitation of CVE-2026-33756 in the wild and no public exploit code.

## Other vulnerabilities in saleor

- [CVE-2026-24136](https://insights.sbomify.com/CVE-2026-24136/): Saleor has an Insecure Direct Object Reference (IDOR) in GraphQL API (high 8.7)
- [CVE-2026-23499](https://insights.sbomify.com/CVE-2026-23499/): Saleor vulnerable to stored XSS via Unrestricted File Upload (high 8.5)
- [CVE-2026-35401](https://insights.sbomify.com/CVE-2026-35401/): Saleor has a resource exhaustion vulnerability in GraphQL queries (high 7.5)
- [CVE-2026-22849](https://insights.sbomify.com/CVE-2026-22849/): Saleor lacks proper HTML sanitization in rich text fields (high 7.2)
- [CVE-2023-26051](https://insights.sbomify.com/CVE-2023-26051/): Saleor is vulnerable to staff-authenticated error message information disclosure vulnerability via Python exceptions (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-33756 and fix it if it is affected.

What it is: CVE-2026-33756 is a high-severity denial of service vulnerability in saleor, published on 8 Apr 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-2026-33756 in the wild and no public exploit code.

Affected product: saleor. 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-2026-33756/ (Markdown: https://insights.sbomify.com/CVE-2026-33756/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-33756
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-33756
- OSV: https://osv.dev/vulnerability/CVE-2026-33756

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-33756/
Summaries are generated and may contain mistakes; the official description above is the record.