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.
Metrics
Affected Vendors & Products
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Advisories
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Fixes
Solution
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Workaround
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References
| Link | Providers |
|---|---|
| https://www.postgresql.org/support/security/CVE-2026-120149/ |
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History
Thu, 12 Nov 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | PostgreSQL FDW batch-insert mismatch executes arbitrary code | |
| Weaknesses | CWE-122 | |
| References |
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| Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: PostgreSQL
Published:
Updated: 2026-11-12T14:15:26.749Z
Reserved: 2026-10-30T22:45:08.383Z
Link: CVE-2026-120149
Vulnrichment
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NVD
Status : Received
Published: 2026-11-12T15:17:43.567
Modified: 2026-11-12T15:17:43.567
Link: CVE-2026-120149
Redhat
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OpenCVE Enrichment
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Weaknesses