Authenticated service interruption via SQL regex backtracking
Published Jul 30, 2026 · Updated Jul 30, 2026
Regular expression denial of service in Apache Superset before 6.0.0 allows remote authenticated users to interrupt service via crafted SQL. SQL_REGEX in sql_parse.py applies overlapping alternatives under a shared quantifier to attacker-controlled backslash sequences, causing excessive backtracking. Access to an endpoint that parses SQL is required, and exploitation consumes application CPU without reported data disclosure or modification.
Summary
What happened
Regular expression denial of service in Apache Superset before 6.0.0 allows remote authenticated users to interrupt service via crafted SQL. SQL_REGEX in sql_parse.py applies overlapping alternatives under a shared quantifier to attacker-controlled backslash sequences, causing excessive backtracking. Access to an endpoint that parses SQL is required, and exploitation consumes application CPU without reported data disclosure or modification.
The record
- CVE
- CVE-2026-23985
- Published
- Jul 30, 2026
- Updated
- Jul 30, 2026
- Vendor
- The Apache Software Foundation
- Product
- Apache Superset
- Classifications
- CWE-1333, T1499
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 30, 2026CVE publishedPublication date reported by the CVE source.
- Jul 30, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <6.0.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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