BlackTreeIndependent security intelligence

Full vulnerability report · 2026

CVE-2026-6471High confidence

PostgreSQL logical decoding can dlopen arbitrary file

n/a · PostgreSQL

7.2HighCVSS 3.1

Recommended action

Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Mitigation available

Distribution package intelligence

Ubuntu vendor package status

Canonical’s release and source-package findings are shown separately from local repository availability.

1 package state

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Ubuntu release	Source package	Vendor state	Fixed version	Evidence
Ubuntu 24.04 LTSnoble · standard archive	`postgresql-16`	Vendor fix publishedCanonical reports that a fixed source package version has been published. Repository candidate availability is not checked by BlackTree.	`16.15-0ubuntu0.24.04.1`	Canonical record ↗Source updated 8 Sept 2026

Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current

CVE-2026-6471 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitypostgresql: PostgreSQL: Arbitrary code execution via logical decoding plugin

162 known affected

The vendor explicitly identifies these products as affected by this CVE.

postgresql as a component of Red Hat Enterprise Linux 10
postgresql-contrib as a component of Red Hat Enterprise Linux 10
postgresql-docs as a component of Red Hat Enterprise Linux 10
postgresql-plperl as a component of Red Hat Enterprise Linux 10
postgresql-plpython3 as a component of Red Hat Enterprise Linux 10
postgresql-pltcl as a component of Red Hat Enterprise Linux 10
postgresql-private-devel as a component of Red Hat Enterprise Linux 10
postgresql-private-libs as a component of Red Hat Enterprise Linux 10
postgresql-server as a component of Red Hat Enterprise Linux 10
postgresql-server-devel as a component of Red Hat Enterprise Linux 10
postgresql-static as a component of Red Hat Enterprise Linux 10
postgresql-test as a component of Red Hat Enterprise Linux 10

Summary: A flaw was found in PostgreSQL. Missing authorization in PostgreSQL's logical decoding feature allows a non-superuser with REPLICATION privilege to load arbitrary files. This can lead to arbitrary code execution as the operating system account running the server.
Remediation: To mitigate this vulnerability, ensure that the REPLICATION privilege is granted only to highly trusted database superusers. Regularly review user privileges to confirm that non-superuser accounts do not possess the REPLICATION privilege unless absolutely necessary and their activities are closely monitored. If logical decoding is not actively used, consider disabling it to further reduce the attack surface, though specific configuration steps for disabling logical decoding are beyond the scope of this mitigation.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current

ENISA EUVD identifier

EUVD-2026-57857

No EUVD known-exploited evidence

Missing authorization in PostgreSQL logical decoding allows a non-superuser holding REPLICATION privilege to dlopen any file visible to the operating system account running the server, via the choice of logical decoding plugin. This in turn runs arbitrary code as that account. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

EUVD state: Present in the current official mapping
Known exploitation: Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score: 7.2 · CVSS 3.1
Advisory evidence: No linked advisory details stored yet

Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Mitigation available

What, why and how

What

Why

The application reaches a protected operation without first confirming that the requester is authorised.

How

An attacker operating through a network path may attempt exploitation with elevated privileges. If successful, the issue may execute code or commands in the affected security context.

What

Why

The application reaches a protected operation without first confirming that the requester is authorised.

How

An attacker operating through a network path may attempt exploitation with elevated privileges. If successful, the issue may execute code or commands in the affected security context.

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path: a network path → Missing Authorization → execute code or commands in the affected security context
Attack surface: Network
Privileges required: High: elevated access is required
User interaction: None
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Unchanged: impact remains within the vulnerable component's security authority
Weakness ? CWE means Common Weakness Enumeration: a standard category for the underlying weakness.: CWE-862 ↗
CWE-862: Missing Authorization. The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRHighPrivileges required: The attacker needs elevated or administrative privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.

NetworkRemote code executionCWE-862

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-57857Official EUVD mapping

Official EUVD record

BSI · German · WID-SEC-W-2026-2844PostgreSQL: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in PostgreSQL ausnutzen, um beliebigen Programmcode auszuführen, SQL-Injection-Angriffe durchzuführen, Sicherheitsmaßnahmen zu umgehen, Daten offenzulegen oder zu manipulieren oder Denial-of-Service-Zustände herbeizuführen.

Official advisory

CERT-FR · French · CERTFR-2026-AVI-1024Multiples vulnérabilités dans PostgreSQL

ERecord?id=CVE-2026-16238 Référence CVE CVE-2026-16239 https://www.cve.org/CVERecord?id=CVE-2026-16239 Référence CVE CVE-2026-16241 https://www.cve.org/CVERecord?id=CVE-2026-16241 Référence CVE CVE-2026-18024 https://www.cve.org/CVERecord?id=CVE-2026-18024 Référence CVE CVE-2026-18408 https://www.cve.org/CVERecord?id=CVE-2026-18408 Référence CVE CVE-2026-19385 https://www.cve.org/CVERecord?id=CVE-2026-19385 Référence CVE CVE-2026-6464 https://www.cve.org/CVERecord?id=CVE-2026-6464 Référence CVE CVE-2026-6469 https://www.cve.org/CVERecord?id=CVE-2026-6469 Référence CVE CVE-2026-6470 https://www.cve.org/CVERecord?id=CVE-2026-6470 Référence CVE CVE-2026-6471 https://www.cve.org/CVERecord?id=CVE-2026-6471 Gestion détaillée du document le 14 août 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr france.fr info.gouv.fr/risques Premier Ministre / Secrétariat Général de la Défense et de la Sécurité Nationale / Agence nationale de la sécurité des systèmes d'information

Official advisory

Patch and workaround

Operational remediation based on structured source evidence.

Status ? Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.: Mitigation available
Affected: postgresql as a component of Red Hat Enterprise Linux 10; postgresql-contrib as a component of Red Hat Enterprise Linux 10; postgresql-docs as a component of Red Hat Enterprise Linux 10; postgresql-plperl as a component of Red Hat Enterprise Linux 10; postgresql-plpython3 as a component of Red Hat Enterprise Linux 10; postgresql-pltcl as a component of Red Hat Enterprise Linux 10; postgresql-private-devel as a component of Red Hat Enterprise Linux 10; postgresql-private-libs as a component of Red Hat Enterprise Linux 10; postgresql-server as a component of Red Hat Enterprise Linux 10; postgresql-server-devel as a component of Red Hat Enterprise Linux 10; postgresql-static as a component of Red Hat Enterprise Linux 10; postgresql-test as a component of Red Hat Enterprise Linux 10; postgresql-test-rpm-macros as a component of Red Hat Enterprise Linux 10; postgresql-upgrade as a component of Red Hat Enterprise Linux 10; postgresql-upgrade-devel as a component of Red Hat Enterprise Linux 10; postgresql16.src as a component of Red Hat Enterprise Linux 10; postgresql18 as a component of Red Hat Enterprise Linux 10; postgresql18-contrib as a component of Red Hat Enterprise Linux 10; postgresql18-docs as a component of Red Hat Enterprise Linux 10; postgresql18-plperl as a component of Red Hat Enterprise Linux 10; postgresql18-plpython3 as a component of Red Hat Enterprise Linux 10; postgresql18-private-devel as a component of Red Hat Enterprise Linux 10; postgresql18-private-libs as a component of Red Hat Enterprise Linux 10; postgresql18-server as a component of Red Hat Enterprise Linux 10; postgresql18-server-devel as a component of Red Hat Enterprise Linux 10; postgresql18-static as a component of Red Hat Enterprise Linux 10; postgresql18-test as a component of Red Hat Enterprise Linux 10; postgresql18-test-rpm-macros as a component of Red Hat Enterprise Linux 10; postgresql18-upgrade as a component of Red Hat Enterprise Linux 10; postgresql18-upgrade-devel as a component of Red Hat Enterprise Linux 10; and 132 more
Fixed: No fixed version is explicitly recorded in the structured CVE data.
Action: No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround: To mitigate this vulnerability, ensure that the REPLICATION privilege is granted only to highly trusted database superusers. Regularly review user privileges to confirm that non-superuser accounts do not possess the REPLICATION privilege unless absolutely necessary and their activities are closely monitored. If logical decoding is not actively used, consider disabling it to further reduce the attack surface, though specific configuration steps for disabling logical decoding are beyond the scope of this mitigation.

Evidence and provenance

Published 13 Aug 2026 · Last source change 29 Aug 2026, 23:07 UTC · CWE-862 · Missing Authorization

CVE recordCVE.org · 5.2

CVSS sourceCNA

EPSS source

The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.

FIRST · tracked since 2026-08-14

European sourceENISA EUVD · EUVD-2026-57857

Product sourceVendor CSAF · Red Hat Product Security

Remediation sourceVendor CSAF · Red Hat Product Security

CWE sourceCNA

NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

6 Sept 2026, 08:56 UTC
BlackTree coverageBlackTree article coverage changed from no BlackTree article to 1 BlackTree article.
Before
no BlackTree article
After
1 BlackTree article
BlackTree editorial ↗
29 Aug 2026, 23:07 UTC
Affected versionsThe structured affected or fixed version information changed.
Before
18 < 18.5; 17 < 17.11; 16 < 16.15; 15 < 15.19; < 14.24 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
After
18 < 18.6; 17 < 17.11; 16 < 16.15; 15 < 15.19; < 14.24 · Fixed: No fixed version is explicitly recorded in the structured CVE data.
CNA ↗
14 Aug 2026, 03:55 UTC
Vendor guidanceAuthoritative vendor guidance changed from no authoritative guidance recorded to vendor advisory.
Before
no authoritative guidance recorded
After
vendor advisory
f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 ↗

2026-08-13CVE published

ENISA EUVD · EUVD-2026-57857↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗

Technical terms and abbreviations used in this report

CVE: Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS: Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS: Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE: Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA: CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP: Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD: National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT: A computer security incident response team that publishes warnings or coordinates incident response.
PoC: Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF: Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL: Living off the land: abuse of legitimate tools or system functions during an attack.