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CVE-2023-30608 Moderate

Parser contains an inefficient regular expression in sqlparse

sqlparse is a non-validating SQL parser module for Python. In affected versions the SQL parser contains a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service). This issue was introduced by commit `e75e358`. The vulnerability may lead to Denial of Service (DoS). This issues has been fixed in sqlparse 0.4.4 by commit `c457abd5f`. Users are advised to upgrade. There are no known workarounds for this issue.

Exploit probability 1.0%
Published April 18, 2023
Required by Not available
Last source change August 12, 2026

02 / AFFECTED SOFTWARE

Affected packages

Unknown Unknown

15 explicit affected versions

PyPI sqlparse

16 explicit affected versions

PyPI sqlparse

16 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities CVE-2023-30608

sqlparse is a non-validating SQL parser module for Python. In affected versions the SQL parser contains a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service). This issue was introduced by commit `e75e358`. The vulnerability may lead to Denial of Service (DoS). This issues has been fixed in sqlparse 0.4.4 by commit `c457abd5f`. Users are advised to upgrade. There are no known workarounds for this issue.

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Open Source Vulnerabilities GHSA-rrm6-wvj7-cwh2

### Impact The SQL parser contains a regular expression that is vulnerable to [ReDoS](https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS) (Regular Expression Denial of Service). The vulnerability may lead to Denial of Service (DoS). ### Patches This issues has been fixed in sqlparse 0.4.4. ### Workarounds None. ### References This issue was discovered and reported by GHSL team member [@erik-krogh (Erik Krogh Kristensen)](https://github.com/erik-krogh). - Commit that introduced the vulnerability: e75e35869473832a1eb67772b1adfee2db11b85a

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Open Source Vulnerabilities PYSEC-2023-87

sqlparse is a non-validating SQL parser module for Python. In affected versions the SQL parser contains a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service). This issue was introduced by commit `e75e358`. The vulnerability may lead to Denial of Service (DoS). This issues has been fixed in sqlparse 0.4.4 by commit `c457abd5f`. Users are advised to upgrade. There are no known workarounds for this issue.

View original source

05 / REFERENCES

Further evidence