CVE-2026-71491

sqlparse is a non-validating SQL parser module for Python. Prior to 0.6.0, group_comments in sqlparse/engine/grouping.py repeatedly rescans comment-only statements before the MAX_GROUPING_TOKENS guard, causing quadratic CPU consumption through sqlparse.parse() and sqlparse.format(sql, strip_comments=True). This issue is fixed in version 0.6.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/andialbrecht/sqlparse/commit/ef2012a5eeb491e604dea2b00d516904a3830c87
https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-f2ff-p2ww-7p4p

Configurations

No configuration.

History

23 Oct 2026, 16:10

Type	Values Removed	Values Added
Summary		(es) sqlparse es un módulo analizador SQL no validador para Python. Antes de 0.6.0, group_comments en sqlparse/engine/grouping.py reescanea repetidamente sentencias de solo comentarios antes de la protección MAX_GROUPING_TOKENS, causando un consumo cuadrático de CPU a través de sqlparse.parse() y sqlparse.format(sql, strip_comments=True). Este problema está corregido en la versión 0.6.0.

Information

Published : 2026-08-17 18:18

Updated : 2026-10-23 16:10

NVD link : CVE-2026-71491

Mitre link : CVE-2026-71491

CVE.ORG link : CVE-2026-71491

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

CWE-407

Inefficient Algorithmic Complexity

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