PostgreSQL: protect database queries

Published · Updated · APIs and connected services · 4 min read · By Cyber Intelligence Embassy

At a glance

PostgreSQL: SQL injection. This 2026-08-14 case examines 5 version entries and 28 CVEs, documented releases and checks suited to databases, using CERTFR-2026-AVI-1024.

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In this article

Retrospective for 2026-08-14, compiled on 27 October 2026. The date identifies the day being analysed; source publication and revision dates are recorded below.

What this advisory changes in your environment

The starting point is CERTFR-2026-AVI-1024, published on 2026-08-14. Its scope includes PostgreSQL. Reported consequences are denial of service, remote code execution, SQL injection, security control bypass, loss of confidentiality. These statements apply to the advisory’s scope; they do not assign every consequence to every product or CVE.

This case focuses on PostgreSQL. Locate that edition in live installations, deployment images and actual dependencies, rather than treating every product from PostgreSQL as equivalent.

Products and versions to examine

Reference
CERTFR-2026-AVI-1024
Source first published
2026-08-14
Latest source revision available for this day
2026-08-14
Named components
PostgreSQL
CVE identifiers
CVE-2026-14671, CVE-2026-16239, CVE-2026-15742, CVE-2026-6469, CVE-2026-14681, CVE-2026-14668, CVE-2026-16241, CVE-2026-18408, CVE-2026-16238, CVE-2026-19385, CVE-2026-14662, CVE-2026-6470, CVE-2026-14669, CVE-2026-14678, CVE-2026-15741, CVE-2026-14677, CVE-2026-14680, CVE-2026-14666, CVE-2026-14673, CVE-2026-14663, CVE-2026-14676, CVE-2026-6464, CVE-2026-6471, CVE-2026-14679 … (+4)
ComponentPublished condition
PostgreSQL16.x : < 16.15
PostgreSQL18.x : < 18.6
PostgreSQL15.x : < 15.19
PostgreSQL< 14.24
PostgreSQL17.x : < 17.11

For PostgreSQL, the published condition is “16.x : < 16.15”. Compare the version actually loaded with that condition within its own release branch. A fix installed on another edition of PostgreSQL does not close this case.

Mechanism and prerequisites

SQL injection breaks the boundary between data and instructions. Check parameterised queries, database account privileges and relevant logs; a destructive payload is unnecessary to establish exposure.

For CERTFR-2026-AVI-1024, the retained documents do not provide a suitably dated primary CVE record to establish this case’s prerequisites. Required authentication, user interaction and active exploitation therefore remain unestablished here; they are not inferred from PostgreSQL or the risk category alone.

Choose the appropriate intervention

  1. Locate PostgreSQL instances, running releases and service owners. Record condition 16.x : < 16.15 in the ticket alongside reference CERTFR-2026-AVI-1024.
  2. Compare the installed branch with the vendor’s PostgreSQL release notes. Prepare the package for that branch and a dependent-service test, retaining the pre-change state.
  3. After changing PostgreSQL, capture the loaded version again and verify the workflow below. Any exception needs an owner, an exposure-reduction measure and an expiry date.

Verify the fix in a real workflow

Validation scenario to adapt for PostgreSQL: With PostgreSQL, run a reference read and transaction in a test database through the application’s actual client. Check account permissions, errors and any replication; distinguish the server release from the driver release. This is a proposed defensive check, not a claim that testing was performed against third-party systems.

Limit of case CERTFR-2026-AVI-1024: this analysis replaces neither vendor prerequisites nor investigation of your logs. Only documented versions are reproduced; no attack date or victim is invented.

Questions specific to this case

Which condition should be checked for PostgreSQL?

Advisory CERTFR-2026-AVI-1024 states: PostgreSQL — 16.x : < 16.15. Check the edition and running release; do not extend the published boundary to branches absent from the advisory.

What is still needed to assess PostgreSQL exposure?

For PostgreSQL, establish the running version, the path to the component and process permissions. The sources retained for CERTFR-2026-AVI-1024 do not establish every prerequisite or active exploitation.

Sources and related reading

Practical guide : Data reliability: diagnose a dashboard before making a decision

Explore the decision addressed in this case

Complete source advisory inventory

The article table may be an extract. These lists contain every affected-system entry and CVE in the specified advisory revision. They are not an inventory of your assets and do not map every CVE to every product.

Official source · CERTFR-2026-AVI-1024
Advisory revision : · Checked on :

Affected systems · 5

Original French wording is retained to avoid ambiguous translations of version conditions.

  1. PostgreSQL versions 16.x antérieures à 16.15
  2. PostgreSQL versions 18.x antérieures à 18.6
  3. PostgreSQL versions 15.x antérieures à 15.19
  4. PostgreSQL versions antérieures à 14.24
  5. PostgreSQL versions 17.x antérieures à 17.11
CVE identifiers · 28