Resource Exhaustion Affecting localstack package, versions <4.14.0-r33
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-LOCALSTACK-21692418
- published24 Oct 2026
- disclosed22 Oct 2026
Introduced: 22 Oct 2026
NewCVE-2026-75508 (opens in a new tab)How to fix?
Upgrade Chainguard localstack to version 4.14.0-r33 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream localstack package and not the localstack package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
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
- https://github.com/graphql-python/graphql-core/commit/437dea102e92fdf05a2971ca76787c5a5bad875a
- https://github.com/graphql-python/graphql-core/commit/80ef435a1808fbbcc4aaac63ae76771a1c91002d
- https://github.com/graphql-python/graphql-core/releases/tag/v3.2.12
- https://github.com/graphql-python/graphql-core/releases/tag/v3.3.0rc1
- https://github.com/graphql-python/graphql-core/security/advisories/GHSA-r77w-qph3-7vf8