CVE-2026-84305 sqlparse: Reindentation of tuple lists causes near-cap quadratic CPU consumption

sqlparse is a non-validating SQL parser module for Python. Prior to 0.6.0, sqlparse.formatsql, reindent=True and sqlformat --reindent route attacker-controlled parenthesized tuple lists through ReindentFilter.getoffset in sqlparse/filters/reindent.py, where flattenuptotoken repeatedly rebuilds an...

CVE-2026-84305

sqlparse , a non-validating SQL parser for Python, is vulnerable to quadratic CPU consumption in versions prior to 0.6.0. When processing attacker-controlled parenthesized tuple lists via sqlparse.format(sql, reindent=True) or sqlformat --reindent, the ReindentFilter._get_offset() function in sql...

GHSA-27JP-WM6Q-GP25 sqlparse: formatting list of tuples leads to denial of service

Summary The below gist hangs while attempting to format a long list of tuples. This was found while drafting a regression test for Dja ngo 5.2's composite primary key feature, which allows querying composite fields with tuples...