CVE-2023-2455

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2023-06-09. NVD baseline CVSS 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 5.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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 v3
5.4
EG Score
5.4MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity54% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.7%
EPSS %ILE
51st
KEV
Not listed

CISA SSVCTrack at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

June 9, 2023

Last Modified

January 6, 2025

References (6)

Vendor Advisories for CVE-2023-2455(15)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(15)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibecpg-compat3 (15.3-0ubuntu0.23.04.1) @ lunar2026-05-24ubuntu
redhatrh-postgresql13-postgresql-0:13.13-1.el72023-12-13redhat
redhatpostgresql:12-8040020231127153301.522a0ee42023-12-07redhat
redhatpostgresql:13-8040020231127154806.522a0ee42023-12-07redhat
redhatpostgresql:12-8020020231128165246.4cda2c842023-12-06redhat
redhatpostgresql:12-8060020231128165328.ad008a3a2023-12-06redhat
redhatpostgresql:13-8060020231114115246.ad008a3a2023-11-29redhat
redhatpostgresql-0:13.13-1.el9_02023-11-28redhat
redhatpostgresql:15-8080020230803085541.63b345852023-09-19redhat
redhatpostgresql:12-8080020230717103820.63b345852023-08-08redhat
redhatpostgresql:10-8080020230720123941.63b345852023-08-08redhat
redhatpostgresql:13-8080020230613131941.63b345852023-08-08redhat
redhatpostgresql:15-9020020230619032405.rhel92023-07-31redhat
redhatrh-postgresql12-postgresql-0:12.15-1.el72023-07-27redhat
redhatpostgresql-0:13.11-1.el9_22023-06-21redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(15 across 11 ecosystems)
Alpine:v3.15(2)
PackageVulnerable rangeFix by version rangeDependents
postgresql13—
  • every version up to 13.11-r0: fixed in 13.11-r0
—
postgresql14—
  • every version up to 14.8-r0: fixed in 14.8-r0
—
Alpine:v3.16(2)
PackageVulnerable rangeFix by version rangeDependents
postgresql13—
  • every version up to 13.11-r0: fixed in 13.11-r0
—
postgresql14—
  • every version up to 14.8-r0: fixed in 14.8-r0
—
Alpine:v3.17(2)
PackageVulnerable rangeFix by version rangeDependents
postgresql14—
  • every version up to 14.8-r0: fixed in 14.8-r0
—
postgresql15—
  • every version up to 15.3-r0: fixed in 15.3-r0
—
Alpine:v3.18(2)
PackageVulnerable rangeFix by version rangeDependents
postgresql14—
  • every version up to 14.8-r0: fixed in 14.8-r0
—
postgresql15—
  • every version up to 15.3-r0: fixed in 15.3-r0
—
Alpine:v3.13(1)
PackageVulnerable rangeFix by version rangeDependents
postgresql—
  • 11.0 up to 13.11-r0: fixed in 13.11-r0
—
Alpine:v3.14(1)
PackageVulnerable rangeFix by version rangeDependents
postgresql—
  • 11.0 up to 13.11-r0: fixed in 13.11-r0
—
Alpine:v3.19(1)
PackageVulnerable rangeFix by version rangeDependents
postgresql15—
  • every version up to 15.3-r0: fixed in 15.3-r0
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
postgresql15—
  • every version up to 15.3-r0: fixed in 15.3-r0
—
Debian:10(1)
PackageVulnerable rangeFix by version rangeDependents
postgresql-1111.10-0+deb10u1 ... 11.9-0+deb10u1 (19 versions)
  • every version up to 11.20-0+deb10u1: fixed in 11.20-0+deb10u1
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
postgresql-1313.10-0+deb11u1 ... 13.9-0+deb11u1 (10 versions)
  • every version up to 13.11-0+deb11u1: fixed in 13.11-0+deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
postgresql-15—
  • every version up to 15.3-0+deb12u1: fixed in 15.3-0+deb12u1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 25× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 189 total refreshes for this CVE.

  1. 2026-10-09 20:05 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2023-2455?
CVE-2023-2455 is a medium vulnerability published on June 9, 2023. 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…
When was CVE-2023-2455 disclosed?
CVE-2023-2455 was first published on June 9, 2023, with the most recent update on January 6, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-2455 actively exploited?
CVE-2023-2455 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (51st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-2455?
CVE-2023-2455 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2023-2455?
A fix for CVE-2023-2455 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2023-2455 are linked in the Vendor Advisories panel on this page.

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