Bug 2563985 (CVE-2026-119591)

Summary: CVE-2026-119591 sqlite: sqlite: Denial of Service via stack exhaustion in countOfViewOptimization()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: akhatavk, aos-team-art-private, asdas, bbrownin, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, rhel-process-autobot, sghai, sidsharm, suppawar, vlaad, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in SQLite. This vulnerability allows an attacker to cause a Denial of Service (DoS) by crashing the host application. By supplying a specially crafted database file or SQL query that performs a count operation over a large multi-row VALUES clause, an attacker can trigger excessive recursion during view optimization. This results in stack exhaustion when freeing internal query expressions, terminating the application process.
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Description OSIDB Bzimport 2026-10-30 13:09:51 UTC 
SQLite before 3.54.0 contains a stack exhaustion vulnerability in countOfViewOptimization() that allows attackers to crash the host process via count(*) over a large multi-row VALUES clause. Attackers supplying SQL or a database file with a crafted view can trigger deeply nested TK_PLUS expressions whose recursive freeing in sqlite3ExprDeleteNN() exhausts the C stack, causing denial of service.