sqlparse contains a regular expression that is vulnerable to Regular Expression Denial of Service
Impact
The SQL parser contains a regular expression that is vulnerable to 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).
- Commit that introduced the vulnerability: e75e35869473832a1eb67772b1adfee2db11b85a
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | sqlparse | >= 0.1.15, < 0.4.4 | 0.4.4 |
References
- https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-rrm6-wvj7-cwh2
- https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS
- https://github.com/andialbrecht/sqlparse/commit/c457abd5f097dd13fb21543381e7cfafe7d31cfb
- https://github.com/andialbrecht/sqlparse/commit/e75e35869473832a1eb67772b1adfee2db11b85a
- https://lists.debian.org/debian-lts-announce/2023/05/msg00017.html
- https://nvd.nist.gov/vuln/detail/CVE-2023-30608
- https://github.com/andialbrecht/sqlparse
- https://github.com/pypa/advisory-database/tree/main/vulns/sqlparse/PYSEC-2023-87.yaml
- https://lists.debian.org/debian-lts-announce/2024/12/msg00022.html
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-1333- Platform
- Python (PyPI)
- Package
sqlparse- Disclosed
- 18.04.2023
- Updated
- 11.10.2026 12:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2023-87 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-rrm6-wvj7-cwh2 - CC BY 4.0
Vulnerability history: sqlparse
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 9
- First → latest
- 09.2021 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 5
- Medium 4
Disclosures per year
- 2021: 1
- 2022: 0
- 2023: 1
- 2024: 1
- 2025: 0
- 2026: 6
-
sqlparse contains a regular expression that is vulnerable to Regular Expression Denial of Service this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.