CVE-2021-32839

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The issues has been fixed in sqlparse 0.4.2."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-400 Uncontrolled Resource Consumption"}]}]}, "references": {"reference_data": [{"name": "https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-p5w8-wqhj-9hhf", "refsource": "CONFIRM", "url": "https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-p5w8-wqhj-9hhf"}, {"name": "https://github.com/andialbrecht/sqlparse/commit/8238a9e450ed1524e40cb3a8b0b3c00606903aeb", "refsource": "MISC", "url": "https://github.com/andialbrecht/sqlparse/commit/8238a9e450ed1524e40cb3a8b0b3c00606903aeb"}]}, "source": {"advisory": "GHSA-p5w8-wqhj-9hhf", "discovery": "UNKNOWN"}}}, "adp": [{"title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-p5w8-wqhj-9hhf"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/andialbrecht/sqlparse/commit/8238a9e450ed1524e40cb3a8b0b3c00606903aeb"}, {"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00022.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T21:44:47.559Z"}}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2021-32839", "datePublished": "2021-09-20T17:10:12.000Z", "dateReserved": "2021-05-12T00:00:00.000Z", "dateUpdated": "2025-11-03T21:44:47.559Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.2"}

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{"affected": [{"affectedData": [{"product": "sqlparse", "vendor": "andialbrecht", "versions": [{"status": "affected", "version": ">= 0.4.0, < 0.4.2"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:sqlparse_project:sqlparse:*:*:*:*:*:*:*:*", "matchCriteriaId": "77AA7C67-AD7E-4F5A-9F4D-577B7670EBE8", "versionEndExcluding": "0.4.2", "versionStartIncluding": "0.4.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "sqlparse es un m\u00f3dulo analizador de SQL no comprobable para Python. En las versiones 0.4.0 y 0.4.1 de sqlparse, se presenta una vulnerabilidad de Denegaci\u00f3n de Servicio por Expresi\u00f3n regular en sqlparse. La expresi\u00f3n regular puede causar un retroceso exponencial en las cadenas que contienen muchas repeticiones de \"\\r\\n\" en los comentarios SQL. S\u00f3lo la funci\u00f3n de formato que elimina los comentarios de las sentencias SQL esta afectada por esta expresi\u00f3n regular. Como soluci\u00f3n, no use la funci\u00f3n sqlformat.format con la palabra clave strip_comments=True o el indicador de l\u00ednea de comandos --strip-comments cuando use la herramienta de l\u00ednea de comandos sqlformat. Este problema ha sido corregido en sqlparse versi\u00f3n 0.4.2"}], "id": "CVE-2021-32839", "lastModified": "2026-06-17T03:53:44.140", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2021-09-20T17:15:09.067", "references": [{"source": "security-advisories@github.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/andialbrecht/sqlparse/commit/8238a9e450ed1524e40cb3a8b0b3c00606903aeb"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-p5w8-wqhj-9hhf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/andialbrecht/sqlparse/commit/8238a9e450ed1524e40cb3a8b0b3c00606903aeb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-p5w8-wqhj-9hhf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00022.html"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"affected_release": [{"advisory": "RHSA-2022:5498", "cpe": "cpe:/a:redhat:satellite:6.11::el8", "package": "python-sqlparse-0:0.4.2-2.el8pc", "product_name": "Red Hat Satellite 6.11 for RHEL 8", "release_date": "2022-07-05T00:00:00Z"}, {"advisory": "RHSA-2022:5498", "cpe": "cpe:/a:redhat:satellite_capsule:6.11::el8", "package": "python-sqlparse-0:0.4.2-2.el8pc", "product_name": "Red Hat Satellite 6.11 for RHEL 8", "release_date": "2022-07-05T00:00:00Z"}], "bugzilla": {"description": "python-sqlparse: ReDoS via regular expression in StripComments filter", "id": "2005072", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2005072"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-400", "details": ["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.", "A resource-consumption flaw was found in python-sqlparse. The formatter function that strips comments from SQL contains a regular expression that is vulnerable to Regular Expression Denial of Service (ReDoS). A network attacker could craft an SQL comment containing numerous repetitions of '\\r\\n' that could cause exponential backtracking and cause the system to hang."], "mitigation": {"lang": "en:us", "value": "As mitigation, 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."}, "name": "CVE-2021-32839", "package_state": [{"cpe": "cpe:/a:redhat:ansible_automation_platform", "fix_state": "Affected", "package_name": "python-sqlparse", "product_name": "Red Hat Ansible Automation Platform 1.2"}, {"cpe": "cpe:/a:redhat:ansible_automation_platform", "fix_state": "Affected", "package_name": "sqlparse", "product_name": "Red Hat Ansible Automation Platform 1.2"}, {"cpe": "cpe:/a:redhat:ansible_tower:3", "fix_state": "Out of support scope", "package_name": "sqlparse", "product_name": "Red Hat Ansible Tower 3"}, {"cpe": "cpe:/a:redhat:openstack:10", "fix_state": "Out of support scope", "package_name": "python-sqlparse", "product_name": "Red Hat OpenStack Platform 10 (Newton)"}, {"cpe": "cpe:/a:redhat:openstack:13", "fix_state": "Out of support scope", "package_name": "python-sqlparse", "product_name": "Red Hat OpenStack Platform 13 (Queens)"}, {"cpe": "cpe:/a:redhat:openstack:16.1", "fix_state": "Not affected", "package_name": "python-sqlparse", "product_name": "Red Hat OpenStack Platform 16.1"}, {"cpe": "cpe:/a:redhat:openstack:16.2", "fix_state": "Not affected", "package_name": "python-sqlparse", "product_name": "Red Hat OpenStack Platform 16.2"}], "public_date": "2021-09-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-32839\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-32839"], "threat_severity": "Moderate"}

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