HIGH 7.5

PYSEC-2026-210

Details

SQLFluff is a modular SQL linter and auto-formatter with support for multiple dialects and templated code. Prior to version 4.2.0, in deployments where untrusted users can provide SQL queries to be linted, an untrusted user can submit a malicious long query to any application using the parser to trigger a Denial of Service through resource exhaustion. This issue has been patched in version 4.2.0.

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Affected packages

PyPI / sqlfluff

Introduced in: 0 Fixed in: 4.2.0

Fix pip install --upgrade 'sqlfluff>=4.2.0'

References

https://github.com/sqlfluff/sqlfluff/security/advisories/GHSA-73jc-5mrq-prw7 [ADVISORY]