Strawberry GraphQL’s Bypass of MaxAliasesLimiter via Fragment Spreads leading to GraphQL Alias Amplification_CVE-2026-47707

{
    "lastseen": "",
    "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.",
    "published": "2026-06-04T14:12:49.083Z",
    "modified": "2026-06-04T14:12:49.083Z",
    "type": "cve",
    "title": "Strawberry GraphQL's Bypass of MaxAliasesLimiter via Fragment Spreads leading to GraphQL Alias Amplification",
    "source": "GitHub_M",
    "references": "https://github.com/strawberry-graphql/strawberry/security/advisories/GHSA-fr49-mhgj-crfc\nhttps://github.com/strawberry-graphql/strawberry/releases/tag/0.315.7",
    "id": "CVE-2026-47707",
    "bulletinFamily": "",
    "cwe": [
        "CWE-400"
    ],
    "cvelist": null,
    "sourceData": "strawberry-graphql strawberry >= 0.172.0, < 0.315.7",
    "sourceHref": "",
    "cvss": {
        "score": 5.3,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "strawberry",
    "version": ">= 0.172.0, < 0.315.7",
    "vendor": "strawberry-graphql",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}