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CVE-2023-2455

Row security policies disregard user ID changes after inlining; PostgreSQL could permit incorrect policies to be applied in certain cases…

Medium5.4EPSS 0.70%
Published
Updated
Reserved
Assigned by
redhat

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.

Timeline

  1. ID reserved

    By redhat

  2. · 39 days later

    Published

  3. · 19 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-2455, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1Medium5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
NVDNVD · Modified3.1Medium5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS (exploitation in 30 days)
0.70% · top 47% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.

Weakness

Affected products

  • postgresql

    • affected PostgreSQL 15.3, PostgreSQL 14.8, PostgreSQL 13.11, PostgreSQL 12.15, PostgreSQL 11.20

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .