CVE-2023-2455

Name: CVE-2023-2455
Creator: NVD / NIST
Published: 2023-06-09T19:15:09.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.69%

Last modified Jun 17, 2026

CVE-2023-2455 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.69%

48.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Postgresql	Postgresql	>= 11.0, < 11.20
Postgresql	Postgresql	>= 12.0, < 12.15
Postgresql	Postgresql	>= 13.0, < 13.11
Postgresql	Postgresql	>= 14.0, < 14.8
Postgresql	Postgresql	>= 15.0, < 15.3
Redhat	Software Collections	All versions
Redhat	Enterprise Linux	8.0
Redhat	Enterprise Linux	9.0
Fedoraproject	Fedora	38

References

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

Timeline

Published: Jun 9, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-2455?

How severe is CVE-2023-2455?

CVE-2023-2455 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.

How do I fix CVE-2023-2455?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-2455?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST