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: 1%CVSS: 5.4Exploit: None knownExposed: 0

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
5.4(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: Track

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%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
50%
KEV
Not listed

Published

June 9, 2023

Last Modified

January 6, 2025

References (6)

Vendor Advisories for CVE-2023-2455(14)

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 / EcosystemFixed in / 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 rangeFixed inDependents
postgresql13—13.11-r0—
postgresql14—14.8-r0—
Alpine:v3.16(2)
PackageVulnerable rangeFixed inDependents
postgresql13—13.11-r0—
postgresql14—14.8-r0—
Alpine:v3.17(2)
PackageVulnerable rangeFixed inDependents
postgresql14—14.8-r0—
postgresql15—15.3-r0—
Alpine:v3.18(2)
PackageVulnerable rangeFixed inDependents
postgresql14—14.8-r0—
postgresql15—15.3-r0—
Alpine:v3.13(1)
PackageVulnerable rangeFixed inDependents
postgresql—13.11-r0—
Alpine:v3.14(1)
PackageVulnerable rangeFixed inDependents
postgresql—13.11-r0—
Alpine:v3.19(1)
PackageVulnerable rangeFixed inDependents
postgresql15—15.3-r0—
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
postgresql15—15.3-r0—
Debian:10(1)
PackageVulnerable rangeFixed inDependents
postgresql-1111.10-0+deb10u1 ... 11.9-0+deb10u1 (19 versions)11.20-0+deb10u1—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
postgresql-1313.10-0+deb11u1 ... 13.9-0+deb11u1 (10 versions)13.11-0+deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
postgresql-15—15.3-0+deb12u1—

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

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 6× in last 7d / 36× 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 150 total refreshes for this CVE.

  1. 2026-08-25 13:46 UTCEPSS rescore
  2. 2026-08-24 14:14 UTCEPSS rescore
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  25. 2026-08-02 10:57 UTCOSV refresh
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  18. 2026-07-23 02:19 UTCEG score recompute
  19. 2026-07-22 23:07 UTCEG score recompute
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  30. 2026-07-16 17:01 UTCEPSS rescore
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  32. 2026-07-15 18:23 UTCOSV refresh
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  60. 2026-06-27 19:04 UTCOSV refresh
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  62. 2026-06-25 13:48 UTCEPSS rescore
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Related CVEs(same vendor + same CWE)

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 in the National Vulnerability Database 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 1% probability of exploitation in the next 30 days, which ranks it in the top 49.8% of all 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?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-2455, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-2455

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