PatchTheCEVCVE-2026-75507: GraphQL-core is a Python port of the GraphQL.js reference implementation
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This month
HIGH 7.5REMOTE
CVE-2026-75507 is a high-severity flaw (CVSS 7.5) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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) C
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Publisher (CNA): GitHub, Inc.
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Python (pip) · graphql-core · FIXED · 3.2.12 · vulnerable: >= 3.0.0, < 3.2.12 · source
pip install --upgrade "graphql-core>=3.2.12"
pip show graphql-core
Fedora 46 · retext · FIXED · 8.1.0-1.fc46 · FEDORA-2026-0602a84203 · source
sudo dnf upgrade --advisory=FEDORA-2026-0602a84203
Debian 12 · graphql-core · NO FIX YET
Debian 13 · graphql-core · NO FIX YET
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Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.