CVE-2026-54284: Andialbrecht Sqlparse

High severity, CVSS 8.7. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Andialbrecht Sqlparse: before 0.6.0 (fixed in 0.6.0)

Published 2026-08-17. Last modified 2026-09-18.