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Vulnerability record · CVE-2023-2455 · published 9 June 2023

CVE-2023-2455: Postgresql improper input validation vulnerability

Postgresql · Postgresql

Row security policies disregard user ID changes after inlining; PostgreSQL could permit incorrect policies to be applied in certain cases where role-specific policies are used and a given query is planned under one role and then executed under other roles. This scenario can happen under security definer functions or when a common user and query is planned initially and then re-used across multiple SET ROLEs. Applying an incorrect policy may permit a user to complete otherwise-forbidden reads and modifications. This affects only databases that have used CREATE POLICY to define a row security policy.

5.4 CVSS 3.1 Medium EPSS 0.69% · top 49.0% CWE-20 · Improper input validation
5.4CVSS 3.1 base score
0.69%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Row security policies disregard user ID changes after inlining; PostgreSQL could permit incorrect policies to be applied in certain cases where role-specific policies are used and a given query is planned under one role and then executed under other roles. This scenario can happen under security definer functions or when a common user and query is planned initially and then re-used across multiple SET ROLEs. Applying an incorrect policy may permit a user to complete otherwise-forbidden reads and modifications. This affects only databases that have used CREATE POLICY to define a row security policy.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/security/cve/CVE-2023-2455 Third Party Advisory
https://security.netapp.com/advisory/ntap-20230706-0006/
https://www.postgresql.org/support/security/CVE-2023-2455/ Vendor Advisory
https://access.redhat.com/security/cve/CVE-2023-2455 Third Party Advisory
https://security.netapp.com/advisory/ntap-20230706-0006/
https://www.postgresql.org/support/security/CVE-2023-2455/ Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2023-2455), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.