{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-84305", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-01T16:17:43.078Z", "datePublished": "2026-09-01T18:33:10.969Z", "dateUpdated": "2026-09-01T19:12:52.039Z"}, "containers": {"cna": {"title": "sqlparse: Reindentation of tuple lists causes near-cap quadratic CPU consumption", "problemTypes": [{"descriptions": [{"cweId": "CWE-407", "lang": "en", "description": "CWE-407: Inefficient Algorithmic Complexity", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "LOCAL", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 5.1, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-cfqr-cjx5-5jcm", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-cfqr-cjx5-5jcm"}, {"name": "https://github.com/andialbrecht/sqlparse/commit/a51df6d9e2d31b44be9adb6bc8732517db6bf96b", "tags": ["x_refsource_MISC"], "url": "https://github.com/andialbrecht/sqlparse/commit/a51df6d9e2d31b44be9adb6bc8732517db6bf96b"}, {"name": "https://github.com/andialbrecht/sqlparse/releases/tag/0.6.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/andialbrecht/sqlparse/releases/tag/0.6.0"}], "affected": [{"vendor": "andialbrecht", "product": "sqlparse", "versions": [{"version": "< 0.6.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-01T18:33:10.969Z"}, "descriptions": [{"lang": "en", "value": "sqlparse is a non-validating SQL parser module for Python. Prior to 0.6.0, sqlparse.format(sql, reindent=True) and sqlformat --reindent route attacker-controlled parenthesized tuple lists through ReindentFilter._get_offset() in sqlparse/filters/reindent.py, where _flatten_up_to_token() repeatedly rebuilds and joins the statement prefix. Thousands of offset calculations walk an expanding token tree, producing quadratic CPU consumption for inputs that remain below MAX_GROUPING_TOKENS and causing request delays, reduced throughput, or worker starvation. This issue is fixed in version 0.6.0."}], "source": {"advisory": "GHSA-cfqr-cjx5-5jcm", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/andialbrecht/sqlparse/security/advisories/GHSA-cfqr-cjx5-5jcm", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-01T19:12:32.847258Z", "id": "CVE-2026-84305", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-01T19:12:52.039Z"}}]}}

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