CVE-2026-54284

sqlparse is a non-validating SQL parser module for Python. Prior to 0.6.0, TokenList construction and string conversion in sqlparse/sql.py repeatedly flatten nested token subtrees constructed by group_parenthesis and group_case, causing quadratic CPU consumption through sqlparse.parse(), sqlparse.format(), and sqlparse.split() before depth and token limits terminate processing. This issue is fixed in version 0.6.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/andialbrecht/sqlparse/commit/939b129e24c0ad5d51368b1aa72fffcaca76f06f
https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-pwgv-4x5q-6m9f
https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-pwgv-4x5q-6m9f

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, la construcción de TokenList y la conversión a cadena en sqlparse/sql.py aplanan repetidamente los subárboles de tokens anidados construidos por group_parenthesis y group_case, causando un consumo cuadrático de CPU a través de sqlparse.parse(), sqlparse.format() y sqlparse.split() antes de que los límites de profundidad y de tokens finalicen el procesamiento. Este problema se corrige en la versión 0.6.0.

Information

Published : 2026-08-17 18:17

Updated : 2026-10-23 16:10

NVD link : CVE-2026-54284

Mitre link : CVE-2026-54284

CVE.ORG link : CVE-2026-54284

JSON object : View

Products Affected

No product.

CWE

CWE-407

Inefficient Algorithmic Complexity

CWE-1333

Inefficient Regular Expression Complexity

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