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OpenAdvisories
High · 7.5 CVE-2026-33756 EUVD-2026-20527

Saleor Affected by Denial of Service via Unbounded GraphQL Query Batching

Published Apr 8, 2026 · Updated Apr 8, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
saleor saleor >= 2.0.0, < 3.20.118, >= 3.21.0-a.0, < 3.21.54, >= 3.22.0-a.0, < 3.22.47, >= 3.23.0-a.0, < 3.23.0a3 —

References