CVE-2026-75508

{"id": "CVE-2026-75508", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-75508", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-29T11:46:36.041252Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "graphql-python", "product": "graphql-core", "versions": [{"status": "affected", "version": ">= 3.2.3, < 3.2.12"}, {"status": "affected", "version": ">= 3.3.0a3, < 3.3.0rc1"}]}]}], "published": "2026-10-22T17:16:59.933", "references": [{"url": "https://github.com/graphql-python/graphql-core/commit/437dea102e92fdf05a2971ca76787c5a5bad875a", "source": "security-advisories@github.com"}, {"url": "https://github.com/graphql-python/graphql-core/commit/80ef435a1808fbbcc4aaac63ae76771a1c91002d", "source": "security-advisories@github.com"}, {"url": "https://github.com/graphql-python/graphql-core/releases/tag/v3.2.12", "source": "security-advisories@github.com"}, {"url": "https://github.com/graphql-python/graphql-core/releases/tag/v3.3.0rc1", "source": "security-advisories@github.com"}, {"url": "https://github.com/graphql-python/graphql-core/security/advisories/GHSA-r77w-qph3-7vf8", "source": "security-advisories@github.com"}, {"url": "https://github.com/graphql-python/graphql-core/security/advisories/GHSA-r77w-qph3-7vf8", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-400"}, {"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-10-29T12:17:13.617", "sourceIdentifier": "security-advisories@github.com"}