CVE-2026-54284

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Source
https://cve.org/CVERecord?id=CVE-2026-54284
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-54284.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-54284
Aliases
Downstream
CGA (120)
CLEANSTART (5)
DEBIAN (1)
ECHO (1)
MINI (5)
OESA (2)
openSUSE (2)
RHSA (7)
ROOT (1)
SUSE (5)
UBUNTU (1)
Related
openSUSE (2)
SUSE (5)
Published
2026-08-17T17:43:48Z
Modified
2026-10-16T03:00:00Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
sqlparse: TokenList.__init__ materializes O(subtree) value per group, causing CPU DoS before depth/token caps trigger
Details

sqlparse is a non-validating SQL parser module for Python. Prior to 0.6.0, TokenList construction and string conversion in sqlparse/sql.py repeatedly flatten nested token subtrees constructed by group_parenthesis and group_case, causing quadratic CPU consumption through sqlparse.parse(), sqlparse.format(), and sqlparse.split() before depth and token limits terminate processing. This issue is fixed in version 0.6.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-1333",
        "CWE-407"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54284.json"
}
References

Affected packages

Git / github.com/andialbrecht/sqlparse

Affected ranges

Type
GIT
Repo
https://github.com/andialbrecht/sqlparse
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
2f40da99b50d81135aecf96f6b08fcfa338a96de
Fixed
939b129e24c0ad5d51368b1aa72fffcaca76f06f
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "0.6.0"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "939b129e24c0ad5d51368b1aa72fffcaca76f06f"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

0.*
0.1.0
0.1.1
0.1.10
0.1.11
0.1.12
0.1.13
0.1.14
0.1.15
0.1.16
0.1.17
0.1.18
0.1.2
0.1.3
0.1.5
0.1.6
0.1.7
0.1.8
0.1.9
0.2.0
0.2.1
0.2.2
0.2.3
0.2.4
0.3.0
0.3.1
0.4.0
0.4.1
0.4.2
0.4.3
0.4.4
0.5.0
0.5.1
0.5.2
0.5.3
0.5.4
0.5.5

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-54284.json"