CVE-2026-47707

MEDIUM 5.3

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

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-400
Vendor	strawberry-graphql
Product	strawberry
Published	Jun 4, 2026
Last Updated	Jun 4, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Affected Versions

strawberry-graphql / strawberry

>= 0.172.0, < 0.315.7

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/strawberry-graphql/strawberry/security/advisories/GHSA-fr49-mhgj-crfc github.com: https://github.com/strawberry-graphql/strawberry/releases/tag/0.315.7