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2 vulnerabilities found for by graphql-python

CVE-2026-75507 (GCVE-0-2026-75507)
Vulnerability from cvelistv5
Published
2026-10-22 16:12
Modified
2026-10-23 21:08
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-407 - Inefficient Algorithmic Complexity
Summary
GraphQL-core is a Python port of the GraphQL.js reference implementation. From 3.0.0 until 3.2.12 and 3.3.0rc1, the OverlappingFieldsCanBeMerged rule in specified_rules repeatedly compares fields that share response names and recursively re-compares flattened inline fragments during the validation phase. The prior named-fragment memoization does not cover this path, so nested repeated inline fragments can drive quadratic and worst-case O(n²·m²) CPU work before any resolver or AST-based depth or complexity control runs. An unauthenticated remote attacker can submit a shallow, highly compressible GraphQL query that pins a worker process and can saturate a multi-worker service. This issue is fixed in versions 3.2.12 and 3.3.0rc1.
References
Impacted products
Vendor Product Version
graphql-python graphql-core Version: >= 3.0.0, < 3.2.12
Version: >= 3.3.0a1, < 3.3.0rc1
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Show details on NVD website

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CVE-2026-75508 (GCVE-0-2026-75508)
Vulnerability from cvelistv5
Published
2026-10-22 16:10
Modified
2026-10-29 11:47
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
GraphQL-core is a Python port of the GraphQL.js reference implementation. From 3.2.3 until 3.2.12 and 3.3.0rc1, the parser's max_tokens limit in Parser.advance_lexer counts only non-comment tokens returned after Lexer.lookahead skips comments. Each skipped comment is still allocated as a Token and retained through token.next and token.prev, allowing a highly compressible comment-padded GraphQL document to pass a low token limit while consuming memory. An unauthenticated remote attacker can exhaust worker memory before AST-based depth or complexity controls run. This issue is fixed in versions 3.2.12 and 3.3.0rc1.
References
Impacted products
Vendor Product Version
graphql-python graphql-core Version: >= 3.2.3, < 3.2.12
Version: >= 3.3.0a3, < 3.3.0rc1
 Create a notification for this product.
Show details on NVD website

To clipboard 

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