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

Quick assessment

Affected
saleor saleor
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

saleor是Saleor Commerce开源的一个接口软件。 saleor 3.23.0a3之前版本、3.22.47之前版本、3.21.54之前版本和3.20.118之前版本存在安全漏洞，该漏洞源于未对GraphQL批处理操作数量设置上限，可能导致资源耗尽。

CVSS 7.5 · High EPSS 0.79% · P55

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking
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I. Basic Information for CVE-2026-33756

Vulnerability Information
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Vulnerability Title
Saleor Affected by Denial of Service via Unbounded GraphQL Query Batching
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
saleor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
saleor是Saleor Commerce开源的一个接口软件。 saleor 3.23.0a3之前版本、3.22.47之前版本、3.21.54之前版本和3.20.118之前版本存在安全漏洞，该漏洞源于未对GraphQL批处理操作数量设置上限，可能导致资源耗尽。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

II. Public POCs for CVE-2026-33756

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7633 chars
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III. Intelligence Information for CVE-2026-33756

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Same Patch Batch · saleor · 2026-04-08 · 4 CVEs total

CVE-2026-35401 7.5 HIGH Saleor has a resource exhaustion vulnerability in GraphQL queries
CVE-2026-35407 Saleor has Cross-Account Email Change via Unbound Confirmation Token
CVE-2026-39851 Saleor has a user enumeration vulnerability due to different error messages

IV. Related Vulnerabilities

Same product: saleor
Same vendor: saleor
Same weakness: CWE-770

V. Comments for CVE-2026-33756

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