Vulnerability · Published Jun 4, 2026 · Assigned by GitHub_M
CVE-2026-47707Strawberry GraphQL's Bypass of MaxAliasesLimiter via Fragment Spreads leading to GraphQL Alias Amplification
Medium 5.3
In plain English
A medium-severity uncontrolled resource consumption in strawberry from strawberry-graphql. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Strawberry GraphQL is a library for creating GraphQL APIs. In versions 0.172.0 through0.315.6, the MaxAliasesLimiter extension in Strawberry fails to account for the multiplicative/amplification effect of FragmentSpreadNode. While it correctly counts static aliases within the AST it does not consider how many times a fragments internal aliases are expanded during execution. this allows an attacker to bypass alias limits and force the server to resolve and render a significantly higher number of aliases than allowed, potentially leading to a dos via resource exhaustion. Version 0.315.7 contains a fix for the issue.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | strawberry-graphql | 0.315.7 | GHSA-fr49-mhgj-crfc |
| PyPI | strawberry-graphql | 0.315.7 | PYSEC-2026-2284 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| strawberry-graphql | strawberry | >= 0.172.0, < 0.315.7 |
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L