CVE-2026-47707

Strawberry GraphQL's Bypass of MaxAliasesLimiter via Fragment Spreads leading to GraphQL Alias Amplification

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

strawberry-graphql · strawberry

CVSS v3.1 GITHUB

5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS

0.69% chance of exploitation in the next 30 days, 52nd percentile

Published

2026-06-04

Proof-of-concept exploits (1)

• advisories/GHSA-fr49-mhgj-crfc

Security advisories

• strawberry-graphql/strawberry/security/advisories/GHSA-fr49-mhgj-crfc
• strawberry-graphql/strawberry/releases/tag/0.315.7

References

• CVE Record
• NVD entry