CVE-2026-120149
Received
Received - Intake
Heap-based Buffer Overflow in PostgreSQL Foreign Data Wrapper
Vulnerability report for CVE-2026-120149, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-11-12
Last updated on: 2026-11-12
Assigner: PostgreSQL
Description
Description
Heap-based buffer overflow in PostgreSQL foreign batch inserts allows a foreign server to execute arbitrary code, via reporting that it inserted more rows than the server supplied. postgres_fdw can legitimately encounter this when a rule on the remote table expands an INSERT into additional rows. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
CVSS Scores
EPSS Scores
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| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| postgresql | postgresql | to 18.7|end_excluding=17.12|end_excluding=16.16|end_excluding=15.20|end_excluding=14.25 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-122 | A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). |
