Resource Exhaustion Affecting sqlparse package, versions <0.2.4-3ubuntu0.1+esm1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.26% (19th percentile)

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  • Snyk IDSNYK-UBUNTU2004-SQLPARSE-18913373
  • published22 Sept 2026
  • disclosed17 Aug 2026

Introduced: 17 Aug 2026

CVE-2026-71491  (opens in a new tab)
CWE-400  (opens in a new tab)
CWE-407  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 sqlparse to version 0.2.4-3ubuntu0.1+esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream sqlparse package and not the sqlparse package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

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 Base Scores

version 3.1