CVE-2026-120154
Received
Received - Intake
PostgreSQL Row Security Policy Bypass via INSERT ... ON CONFLICT
Vulnerability report for CVE-2026-120154, 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
Improper protection in PostgreSQL INSERT ... ON CONFLICT allows an attacker having INSERT, UPDATE, and applicable SELECT privileges on the table to read every row despite row security policies, via iterated INSERT ... ON CONFLICT DO UPDATE. Unlike CVE-2026-16237, this does not facilitate improper writes. Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.
CVSS Scores
EPSS Scores
| Probability: | |
| 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-424 | The product does not sufficiently protect all possible paths that a user can take to access restricted functionality or resources. |
