CVE-2026-71491 - sqlparse: Quadratic O(n²) DoS in group_comments

CVE-2026-71491 - sqlparse: Quadratic O(n²) DoS in group_comments

https://cvefeed.io/rssfeed/latest.atom / Mon, 08/17/2026 - 22:26
CVE ID :CVE-2026-71491
Published : Aug. 17, 2026, 6:18 p.m. | 1 hour, 12 minutes ago
Description :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.
Severity: 8.7 | HIGH
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