Bug 2515324 (CVE-2026-14676)

Summary: CVE-2026-14676 postgresql: PostgreSQL pg_stat_statements: Arbitrary code execution via heap buffer overflow
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: dschmidt, jlanda, kshier, rhel-process-autobot, simaishi, stcannon, teagle, watson-tool-maintainers, yguenane
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in PostgreSQL pg_stat_statements. A local attacker, specifically a query author, could exploit a heap buffer overflow vulnerability by crafting special queries containing array constants. This could allow the attacker to execute arbitrary code as the operating system user running the database, leading to a complete compromise of the database system.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2523530    
Bug Blocks:    

Description OSIDB Bzimport 2026-08-13 13:30:40 UTC
Heap buffer overflow in PostgreSQL pg_stat_statements allows the query author to execute arbitrary code as the operating system user running the database, via crafted queries containing array constants.  Within major version 18, minor versions before PostgreSQL 18.5 are affected.  Versions before PostgreSQL 18 are unaffected.