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CVE-2026-6471

PostgreSQL logical decoding can dlopen arbitrary file

HIGH
7.2
CVSS Score
Published: August 13, 2026 at 01:00 PM UTC
Updated: August 29, 2026 at 11:33 PM UTC
1 product affected across 1 vendorPostgreSQL

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Severity
HIGH7.2
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

PostgreSQL· PostgreSQL
95%
v < 14.2414.0 ≤ v < 14.2415 ≤ v < 15.1915.0 ≤ v < 15.1916 ≤ v < 16.1516.0 ≤ v < 16.1517 ≤ v < 17.1117.0 ≤ v < 17.1118 ≤ v < 18.618.0 ≤ v < 18.515161718
Affected range stops below 14.24, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.19, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.15, so it looks safe — our inference, not a vendor statement
Affected range stops below 17.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 18.5, so it looks safe — our inference, not a vendor statement
Affected range stops below 18.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: cverecord
https://www.postgresql.org/support/security/CVE-2026-6471/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.2HIGHPostgreSQL
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-862

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