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Vulnerability Details CVE-2026-14676

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.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.006

EPSS Ranking 46.6%

CVSS Severity

CVSS v3 Score 8.8

References

https://www.postgresql.org/support/security/CVE-2026-14676/

Products affected by CVE-2026-14676

Postgresql » Postgresql » Version: 18.0

cpe:2.3:a:postgresql:postgresql:18.0
Postgresql » Postgresql » Version: 18.1

cpe:2.3:a:postgresql:postgresql:18.1
Postgresql » Postgresql » Version: 18.2

cpe:2.3:a:postgresql:postgresql:18.2
Postgresql » Postgresql » Version: 18.3

cpe:2.3:a:postgresql:postgresql:18.3
Postgresql » Postgresql » Version: 18.4

cpe:2.3:a:postgresql:postgresql:18.4

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Vulnerability Details CVE-2026-14676

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