--- id: CVE-2026-6464 title: >- Untrusted data inclusion in PostgreSQL psql COPY may allow a server administrator to elicit execution of data lines as psql commands, via error injection summary: >- 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 in… severity: high cvss: 8.1 cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H' cwe: - CWE-829 vendor: postgresql product: postgresql affected: - 'postgresql >= 14.0, < 14.24' - 'postgresql >= 15.0, < 15.19' - 'postgresql >= 16.0, < 16.15' - 'postgresql >= 17.0, < 17.11' - 'postgresql >= 18.0, < 18.5' patched: - postgresql 18.5 published: '2026-08-13' updated: '2026-08-29' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-6464' references: - url: 'https://www.postgresql.org/support/security/CVE-2026-6464/' label: f86ef6dc-4d3a-42ad-8f28-e6d5547a5007 - url: >- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6464.json - url: 'https://access.redhat.com/security/cve/CVE-2026-6464' - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2515306' - url: 'https://www.cve.org/CVERecord?id=CVE-2026-6464' - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-6464' - url: 'https://access.redhat.com/errata/RHSA-2026:67280' - url: 'https://access.redhat.com/errata/RHSA-2026:67491' - url: 'https://access.redhat.com/errata/RHSA-2026:67848' - url: 'https://access.redhat.com/errata/RHSA-2026:70186' - url: 'https://access.redhat.com/errata/RHSA-2026:69924' - url: 'https://access.redhat.com/errata/RHSA-2026:69923' - url: 'https://access.redhat.com/errata/RHSA-2026:69876' - url: 'https://access.redhat.com/errata/RHSA-2026:70602' - url: 'https://access.redhat.com/errata/RHSA-2026:70763' - url: 'https://access.redhat.com/errata/RHSA-2026:70762' - url: 'https://access.redhat.com/errata/RHSA-2026:70856' - url: 'https://access.redhat.com/errata/RHSA-2026:70559' - url: 'https://access.redhat.com/errata/RHSA-2026:69914' - url: 'https://access.redhat.com/errata/RHSA-2026:69607' tags: - nvd - csaf - vex - red-hat epss: 0.00358 epssPercentile: 0.29633 ingestedAt: '2026-08-29T23:43:53.913Z' --- ## Overview 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't control. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are affected. ## Affected - `postgresql >= 14.0, < 14.24` - `postgresql >= 15.0, < 15.19` - `postgresql >= 16.0, < 16.15` - `postgresql >= 17.0, < 17.11` - `postgresql >= 18.0, < 18.5` ## Remediation Upgrade past the affected range: - `postgresql 18.5` ## Vendor advisories - **RHSA-2026:67280** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-09-14 · [advisory](https://access.redhat.com/errata/RHSA-2026:67280) - **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Self-service automation portal 2 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Self-service automation portal 2 · updated 2026-09-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6464.json) - **RHSA-2026:67491** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2026-09-15 · [advisory](https://access.redhat.com/errata/RHSA-2026:67491) - **RHSA-2026:67848** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2026-09-16 · [advisory](https://access.redhat.com/errata/RHSA-2026:67848) - **RHSA-2026:70186** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:70186) - **RHSA-2026:69924** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:69924) - **RHSA-2026:69923** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:69923) - **RHSA-2026:69876** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:69876) - **RHSA-2026:70602** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8) · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70602) - **RHSA-2026:70763** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.2) · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70763) - **RHSA-2026:70762** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.4) · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70762) - **RHSA-2026:70856** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.4) · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70856) - **RHSA-2026:70559** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6) · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70559) - **RHSA-2026:69914** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:69914)