CVE-2026-6464

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

13/08/2026

Last modified:

29/08/2026

Description

Untrusted data inclusion in PostgreSQL psql COPY may allow a server administrator to elicit execution of data lines as psql commands, via error injection. If the "COPY FROM STDIN" or "\copy FROM STDIN" command fails before the server indicates that it awaits input rows, psql processes the in-line data rows as psql commands. "COPY FROM" with a filename is unaffected. The server administrator has no inherent control over the data rows, so a complete attack requires the attacker to separately acquire control of both the server and the data rows. Alternatively, an attacker controlling data rows alone might complete an attack through a coincidental error that they don&#39;t control. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.10 HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.10

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:postgresql:postgresql::::::::	14.0 (including)	14.24 (excluding)
cpe:2.3:a:postgresql:postgresql::::::::	15.0 (including)	15.19 (excluding)
cpe:2.3:a:postgresql:postgresql::::::::	16.0 (including)	16.15 (excluding)
cpe:2.3:a:postgresql:postgresql::::::::	17.0 (including)	17.11 (excluding)
cpe:2.3:a:postgresql:postgresql::::::::	18.0 (including)	18.5 (excluding)

To consult the complete list of CPE names with products and versions, see this page

References to Advisories, Solutions, and Tools

https://www.postgresql.org/support/security/CVE-2026-6464/