sqlparse: sqlparse: Denial of Service via quadratic CPU consumption in comment grouping

A flaw was found in sqlparse, a Python module for parsing SQL. A remote attacker could exploit this vulnerability by providing specially crafted SQL input that contains numerous comment-only statements. This could cause the groupcomments function to repeatedly rescan these statements, leading to...

sqlparse: sqlparse: Denial of Service via quadratic CPU consumption in comment grouping

A flaw was found in sqlparse, a Python module for parsing SQL. A remote attacker could exploit this vulnerability by providing specially crafted SQL input that contains numerous comment-only statements. This could cause the groupcomments function to repeatedly rescan these statements, leading to...

sqlparse: sqlparse: Denial of Service via quadratic CPU consumption in comment grouping

A flaw was found in sqlparse, a Python module for parsing SQL. A remote attacker could exploit this vulnerability by providing specially crafted SQL input that contains numerous comment-only statements. This could cause the groupcomments function to repeatedly rescan these statements, leading to...

Security update for python-sqlparse

This update for python-sqlparse fixes the following issues: CVE-2026-54284: TokenList.init materializes Osubtree value per group, causing CPU DoS before depth/token caps trigger bsc1275459. CVE-2026-59893: Inefficient Regex Handling of Dollar-Quoted SQL Literals Leads to ReDoS bsc1275461...

CVE-2026-71491

A flaw was found in sqlparse, a Python module for parsing SQL. A remote attacker could exploit this vulnerability by providing specially crafted SQL input that contains numerous comment-only statements. This could cause the groupcomments function to repeatedly rescan these statements, leading to...

Security update for python-sqlparse

This update for python-sqlparse fixes the following issues: CVE-2026-54284: TokenList.init materializes Osubtree value per group, causing CPU DoS before depth/token caps trigger bsc1275459. CVE-2026-59893: Inefficient Regex Handling of Dollar-Quoted SQL Literals Leads to ReDoS bsc1275461...

PYSEC-2026-3697 sqlparse: Quadratic O(n²) DoS in group_comments

Summary A comment-only statement -- c\nn may cause a Denial of Service DoS. Details Location: sqlparse/engine/grouping.py:331-341 groupcomments, invoked first in group at grouping.py:439. Reachable via sqlparse.parse and sqlparse.formatsql, stripcomments=True. A statement made of many single-line...

sqlparse: Quadratic O(n²) DoS in group_comments

SummaryA comment-only statement -- c\nn may cause a Denial of Service DoS. DetailsLocation: sqlparse/engine/grouping.py:331-341 groupcomments, invoked first in group at grouping.py:439. Reachable via sqlparse.parse and sqlparse.formatsql, stripcomments=True.A statement made of many single-line...

Denial of Service (DoS)

Overview Affected versions of this package are vulnerable to Denial of Service DoS via the groupcomments function in sqlparse/engine/grouping.py when parsing a statement composed entirely of comment tokens e.g., repeated -- c\n lines. The function rescans the entire remaining token tail once per...

CVE-2026-71491

sqlparse is a non-validating SQL parser module for Python. Prior to 0.6.0, groupcomments in sqlparse/engine/grouping.py repeatedly rescans comment-only statements before the MAXGROUPINGTOKENS guard, causing quadratic CPU consumption through sqlparse.parse and sqlparse.formatsql, stripcomments=Tru...

sqlparse: Quadratic O(n²) DoS in group_comments

Summary A comment-only statement -- c\nn may cause a Denial of Service DoS. Details Location: sqlparse/engine/grouping.py:331-341 groupcomments, invoked first in group at grouping.py:439. Reachable via sqlparse.parse and sqlparse.formatsql, stripcomments=True. A statement made of many single-line...

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

sqlparse is a non-validating SQL parser module for Python. Prior to 0.6.0, groupcomments in sqlparse/engine/grouping.py repeatedly rescans comment-only statements before the MAXGROUPINGTOKENS guard, causing quadratic CPU consumption through sqlparse.parse and sqlparse.formatsql, stripcomments=Tru...

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

sqlparse is a non-validating SQL parser module for Python. Prior to 0.6.0, groupcomments in sqlparse/engine/grouping.py repeatedly rescans comment-only statements before the MAXGROUPINGTOKENS guard, causing quadratic CPU consumption through sqlparse.parse and sqlparse.formatsql, stripcomments=Tru...

EUVD-2026-60309

sqlparse is a non-validating SQL parser module for Python. Prior to 0.6.0, groupcomments in sqlparse/engine/grouping.py repeatedly rescans comment-only statements before the MAXGROUPINGTOKENS guard, causing quadratic CPU consumption through sqlparse.parse and sqlparse.formatsql, stripcomments=Tru...

CVE-2026-71491: Uncontrolled Resource Consumption

sqlparse is a non-validating SQL parser module for Python. Prior to 0.6.0, groupcomments in sqlparse/engine/grouping.py repeatedly rescans comment-only statements before the MAXGROUPINGTOKENS guard, causing quadratic CPU consumption through sqlparse.parse and sqlparse.formatsql, stripcomments=Tru...