CVE-2026-59893 — sqlparse: Inefficient Regex Handling of Dollar-Quoted SQL Literals Leads to ReDoS (Denial of Service)

CVE-2026-59893

sqlparse: Inefficient Regex Handling of Dollar-Quoted SQL Literals Leads to ReDoS (Denial of Service) PUBLISHED

Description (CNA)

sqlparse is a non-validating SQL parser module for Python. Prior to 0.6.0, SQL_REGEX in sqlparse/keywords.py and the per-position loop in sqlparse/lexer.py repeatedly scan unmatched dollar-quoted literal and multiline-comment delimiters, causing quadratic CPU consumption through sqlparse.parse(), sqlparse.format(), and sqlparse.split(). This issue is fixed in version 0.6.0.

Affected (CNA)

Vendor / product	Versions
andialbrecht / sqlparse	affected < 0.6.0

CWE

CWE-1333

References

https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-prg7-hcfm-mfcr
https://github.com/andialbrecht/sqlparse/commit/d1d80602741f77ec78e5a04ce4719244cf32352e

ADP enrichment

CISA-ADP

No English description supplied.

https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-prg7-hcfm-mfcr