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CVE-2021-32839

Regular Expression Denial of Service in sqlparse PUBLISHED

Description (CNA)

sqlparse is a non-validating SQL parser module for Python. In sqlparse versions 0.4.0 and 0.4.1 there is a regular Expression Denial of Service in sqlparse vulnerability. The regular expression may cause exponential backtracking on strings containing many repetitions of '\r\n' in SQL comments. Only the formatting feature that removes comments from SQL statements is affected by this regular expression. As a workaround don't use the sqlformat.format function with keyword strip_comments=True or the --strip-comments command line flag when using the sqlformat command line tool. The issues has been fixed in sqlparse 0.4.2.

Affected (CNA)

Vendor / productVersions
andialbrecht / sqlparseaffected >= 0.4.0, < 0.4.2

CWE

CWE-400

References

ADP enrichment

CVE

No English description supplied.