PostgreSQL pg_stat_statements heap overflow allows authenticated RCE (CVE-2026-14676)
Original title: ZDI-26-974: PostgreSQL pg_stat_statements Extension Heap-based Buffer Overflow Remote Code Execution Vulnerability
ZDI rates the authenticated heap overflow CVSS 8.8 and lists no affected or fixed versions.
Zero Day Initiative advisory ZDI-26-974 describes a heap-based buffer overflow in the PostgreSQL pg_stat_statements extension, tracked as CVE-2026-14676. A remote attacker who can authenticate can execute arbitrary code on affected installations. The snippet gives a CVSS score of 8.8 but no version range, patch, or exploitation status.
Unconfirmed: Affected versions, a fix, and exploitation status are not stated in the snippet.
- The flaw is a heap-based buffer overflow in pg_stat_statements.
- Authentication is required before the remote code execution can be triggered.
- ZDI assigned CVSS 8.8 and CVE-2026-14676.
- The snippet names neither an affected range nor a fixed release.
Impact: authenticated remote arbitrary code execution
| Product | Affected |
|---|---|
| PostgreSQL pg_stat_statements | — |
- CVEs
- CVE-2026-14676
- Vendors
- PostgreSQL
- Products
- pg_stat_statements
- Organizations
- Zero Day Initiative
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| 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… | 8.8 | <1% |
From the original article
This vulnerability allows remote attackers to execute arbitrary code on affected installations of PostgreSQL. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.
zerodayinitiative.com
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