{"answers":{"affected":"3 open source packages ship an affected version, including sqlparse. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-32839 in the wild and no public exploit code.","fix":"Upgrade sqlparse to 0.4.2 or later.","what":"CVE-2021-32839 is a high-severity denial of service vulnerability in andialbrecht sqlparse, published on 20 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-32839 and fix it if it is affected.\n\nWhat it is: CVE-2021-32839 is a high-severity denial of service vulnerability in andialbrecht sqlparse, published on 20 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-32839 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- sqlparse (PyPI): affected from 0.4.0; fixed in 0.4.2\n- sqlparse (PyPI): affected from 0.4.0; fixed in 0.4.2\n- sqlparse (PyPI): affected from 0.4.0; fixed in 0.4.2\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-32839/ (Markdown: https://insights.sbomify.com/CVE-2021-32839/index.md)","id":"CVE-2021-32839","markdown":"https://insights.sbomify.com/CVE-2021-32839/index.md","name":"CVE-2021-32839","record":{"aliases":["DEBIAN-CVE-2021-32839","GHSA-p5w8-wqhj-9hhf","PYSEC-2021-333","SUSE-SU-2021:3857-1","UBUNTU-CVE-2021-32839","openSUSE-SU-2021:3857-1","openSUSE-SU-2024:11581-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Python SQL parser","requires_auth":"none","summary":"An attacker can cause a denial of service via exponential backtracking in sqlparse when stripping comments from SQL statements.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"sqlparse","vendor":"sqlparse_project"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"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.","ecosystems":["PyPI","SUSE:Linux Enterprise Module for Basesystem 15 SP3","openSUSE:Leap 15.3","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Regular Expression Denial of Service in sqlparse","id":"CVE-2021-32839","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":6,"n_references":2,"next":{"headline":"Path Traversal in SharpZipLib","id":"CVE-2021-32840"},"packages":[{"ecosystem":"PyPI","fixed":["0.4.2"],"introduced":["0.4.0"],"last_affected":[],"package":"sqlparse","purl":null,"source":"GHSA-p5w8-wqhj-9hhf"},{"ecosystem":"PyPI","fixed":["0.4.2"],"introduced":["0.4.0"],"last_affected":[],"package":"sqlparse","purl":"pkg:pypi/sqlparse","source":"GHSA-p5w8-wqhj-9hhf"},{"ecosystem":"PyPI","fixed":["0.4.2"],"introduced":["0.4.0"],"last_affected":[],"package":"sqlparse","purl":"pkg:pypi/sqlparse","source":"PYSEC-2021-333"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP3","fixed":["0.4.2-3.3.1"],"introduced":["0"],"last_affected":[],"package":"python-sqlparse","purl":"pkg:rpm/suse/python-sqlparse\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3","source":"SUSE-SU-2021:3857-1"},{"ecosystem":"openSUSE:Leap 15.3","fixed":["0.4.2-3.3.1"],"introduced":["0"],"last_affected":[],"package":"python-sqlparse","purl":"pkg:rpm/opensuse/python-sqlparse\u0026distro=openSUSE%20Leap%2015.3","source":"openSUSE-SU-2021:3857-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["0.4.2-1.1"],"introduced":["0"],"last_affected":[],"package":"python-sqlparse","purl":"pkg:rpm/opensuse/python-sqlparse\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:11581-1"}],"prev":{"headline":"Regular Expression Denial of Service in flask-restx","id":"CVE-2021-32838"},"products":["sqlparse"],"published":"2021-09-20","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2025-11-03","vendors":["andialbrecht"]},"summary":"An attacker can cause a denial of service via exponential backtracking in sqlparse when stripping comments from SQL statements.","url":"https://insights.sbomify.com/CVE-2021-32839/"}