CVE-2023-30608: sqlparse is a non-validating SQL parser module for Python

Q: How do I fix CVE-2023-30608?

sqlparse: upgrade to 0.4.4; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2023-30608 being exploited?

CVE-2023-30608 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-30608 affect?

CVE-2023-30608 affects sqlparse, debian linux. Severity is medium (CVSS 5.5). 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`.

Q: How urgent is CVE-2023-30608?

Priority 40/100. On your watchlist

This month

MEDIUM 5.5WATCHLISTUPGRADEMITIGATE

CVE-2023-30608 is a medium-severity flaw (CVSS 5.5) affecting sqlparse, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-1333
Published	2023-04-18
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: debian · sqlparse project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-04-18 22:15 UTCPublished CVE record published
2026-06-17 05:55 UTCUpdated Record last modified

sqlparse project sqlparse UPGRADE

Affected: >= 0.1.15 and < 0.4.4

Fixed in: 0.4.4

Safe to downgrade to: a release before 0.1.15

1. Check installed version

pip show sqlparse

2. UPGRADE to 0.4.4

pip install --upgrade "sqlparse>=0.4.4"

3. If no update is available yet, DOWNGRADE to a release before 0.1.15

pip index versions sqlparse pip install "sqlparse<0.1.15"

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

debian debian linux MITIGATE

Affected: 10.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 10.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-30608?

sqlparse: upgrade to 0.4.4; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-30608 being exploited?

CVE-2023-30608 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-30608 affect?

CVE-2023-30608 affects sqlparse, debian linux. Severity is medium (CVSS 5.5). 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`.

How urgent is CVE-2023-30608?

Priority 40/100. On your watchlist

Software pages

Python vulnerabilities · Debian vulnerabilities

References

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