Postgresql Postgresql
CVE-2026-6471
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.
What this means for your business
- It affects Postgresql. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it remotely, over a network, with an administrator login, and without anyone at your company clicking anything.
- FIRST's prediction model gives it a 0.3% chance of attack attempts being seen in the next 30 days, ranking above 21% of all known flaws.
What to do
- 1Check whether your company or your suppliers run Postgresql, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
Fastnexa security experts
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Scoring
- CVSS
- 7.2 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H- Weakness
- CWE-862
- Assigned by
- f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
Dates
- Published
- 2026-08-13
- Last modified
- 2026-08-29
- Sources
- NVD
Affected products
- Postgresql Postgresql14.0 - 14.24, 15.0 - 15.19, 16.0 - 16.15, 17.0 - 17.11, 18.0 - 18.5
As listed in the NVD configuration data. Not a statement about your estate.