Answer in brief
CVE-2026-75508 records a High severity (CVSS 7.5) vulnerability in GraphQL-core: Denial of service via comment tokens bypassing the parser's max_tokens limit. The current sources do not mark it as known exploited. The current feed maps graphql-python/graphql-core (generic), graphql-core (pip), graphql-core (pip). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps graphql-python/graphql-core (generic), graphql-core (pip), graphql-core (pip). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| graphql-python/graphql-coregeneric | >=3.2.3 <3.2.12 || >=3.3.0a3 <3.3.0rc1 | 3.2.12, 3.3.0rc1 |
| graphql-corepip | >=3.2.3,<3.2.12 | 3.2.12 |
| graphql-corepip | >=3.3.0a3,<3.3.0rc1 | 3.3.0rc1 |
Published upstream
Oct 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 22, 2026
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.
Quoted source text, attributed separately from HOL analysis.