CVE-2026-54284: CWE-407: Inefficient Algorithmic Complexity in andialbrecht sqlparse
CVE-2026-54284 is a high severity vulnerability in the Python sqlparse module prior to version 0.6.0. The issue involves inefficient algorithmic complexity causing quadratic CPU consumption during token list construction and string conversion, which affects functions like sqlparse.parse(), sqlparse.format(), and sqlparse.split(). This inefficiency is triggered by repeatedly flattening nested token subtrees. The vulnerability is fixed in sqlparse version 0.6.0.
AI Analysis
Technical Summary
The sqlparse Python module before version 0.6.0 suffers from inefficient algorithmic complexity (CWE-407) due to repeated flattening of nested token subtrees constructed by group_parenthesis and group_case. This leads to quadratic CPU consumption in key functions such as sqlparse.parse(), sqlparse.format(), and sqlparse.split(), potentially causing performance degradation or denial of service. The issue is resolved in version 0.6.0.
Potential Impact
The vulnerability causes excessive CPU consumption when processing certain SQL inputs, which can degrade performance or lead to denial of service conditions in applications using vulnerable versions of sqlparse. There is no indication of privilege escalation, data disclosure, or code execution impact.
Mitigation Recommendations
Upgrade to sqlparse version 0.6.0 or later, where this inefficiency has been fixed. No other mitigation or workaround is indicated.
CVE-2026-54284: CWE-407: Inefficient Algorithmic Complexity in andialbrecht sqlparse
Description
CVE-2026-54284 is a high severity vulnerability in the Python sqlparse module prior to version 0.6.0. The issue involves inefficient algorithmic complexity causing quadratic CPU consumption during token list construction and string conversion, which affects functions like sqlparse.parse(), sqlparse.format(), and sqlparse.split(). This inefficiency is triggered by repeatedly flattening nested token subtrees. The vulnerability is fixed in sqlparse version 0.6.0.
CVSS v4.0
Score 8.7high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The sqlparse Python module before version 0.6.0 suffers from inefficient algorithmic complexity (CWE-407) due to repeated flattening of nested token subtrees constructed by group_parenthesis and group_case. This leads to quadratic CPU consumption in key functions such as sqlparse.parse(), sqlparse.format(), and sqlparse.split(), potentially causing performance degradation or denial of service. The issue is resolved in version 0.6.0.
Potential Impact
The vulnerability causes excessive CPU consumption when processing certain SQL inputs, which can degrade performance or lead to denial of service conditions in applications using vulnerable versions of sqlparse. There is no indication of privilege escalation, data disclosure, or code execution impact.
Mitigation Recommendations
Upgrade to sqlparse version 0.6.0 or later, where this inefficiency has been fixed. No other mitigation or workaround is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-12T17:46:37.292Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a834becbf8831d5394ecf7e
Added to database: 08/17/2026, 17:59:08 UTC
Last enriched: 08/17/2026, 18:11:35 UTC
Last updated: 08/17/2026, 18:25:38 UTC
Views: 5
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