Bug 2523530

Summary: CVE-2026-14676 postgresql18: PostgreSQL pg_stat_statements: Arbitrary code execution via heap buffer overflow [fedora-all]
Product: [Fedora] Fedora Reporter: Samuele Negrini <snegrini>
Component: postgresql18Assignee: Filip Januš <fjanus>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: db-sig, fjanus, ndavidov
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["87fe2f72-543d-4965-9cae-19f49ad91026"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2515324    

Description Samuele Negrini 2026-08-25 15:13:54 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.