Server crash via crafted LEFT JOIN query
Published Jun 23, 2026 · Updated Jun 23, 2026
Denial of service in OpenLink Virtuoso Open Source 7.2.11 allows remote attackers to crash the server with a crafted SQL statement. The query compiler's sqlo_tb_col_preds routine crashes while deriving column predicates for a LEFT JOIN that combines equality and contains() conditions. The proof of concept uses a DBA SQL session, although CISA assesses no privileges as required; the demonstrated consequence is a database-server crash.
Summary
What happened
Denial of service in OpenLink Virtuoso Open Source 7.2.11 allows remote attackers to crash the server with a crafted SQL statement. The query compiler's sqlo_tb_col_preds routine crashes while deriving column predicates for a LEFT JOIN that combines equality and contains() conditions. The proof of concept uses a DBA SQL session, although CISA assesses no privileges as required; the demonstrated consequence is a database-server crash.
The record
- CVE
- CVE-2025-61022
- Published
- Jun 23, 2026
- Updated
- Jun 23, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-89, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 23, 2026CVE publishedPublication date reported by the CVE source.
- Jun 23, 2026Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
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Published CVSS scores
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Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Virtuoso sqlo_tb_col_preds crash proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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