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Vulnerability record · CVE-2021-23214 · published 4 March 2022

CVE-2021-23214: Postgresql sql injection vulnerability

Postgresql · Postgresql

When the server is configured to use trust authentication with a clientcert requirement or to use cert authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of SSL certificate verification and encryption.

8.1 CVSS 3.1 High EPSS 1.9% · top 21.0% CWE-89 · SQL injection
8.1CVSS 3.1 base score, v2 5.1
1.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

Description

When the server is configured to use trust authentication with a clientcert requirement or to use cert authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of SSL certificate verification and encryption.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.redhat.com/show_bug.cgi?id=2022666 Issue TrackingPatchThird Party Advisory
https://git.postgresql.org/gitweb/?p=postgresql.git%3Ba=commit%3Bh=28e24125541545483093819efae9bca603441951
https://github.com/postgres/postgres/commit/28e24125541545483093819efae9bca603441951 PatchThird Party Advisory
https://security.gentoo.org/glsa/202211-04 Third Party Advisory
https://www.postgresql.org/support/security/CVE-2021-23214/ Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2022666 Issue TrackingPatchThird Party Advisory
https://git.postgresql.org/gitweb/?p=postgresql.git%3Ba=commit%3Bh=28e24125541545483093819efae9bca603441951
https://github.com/postgres/postgres/commit/28e24125541545483093819efae9bca603441951 PatchThird Party Advisory
https://security.gentoo.org/glsa/202211-04 Third Party Advisory
https://www.postgresql.org/support/security/CVE-2021-23214/ Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2021-23214), CISA KEV, FIRST EPSS (scores of 2026-10-04). This page is refreshed as NVD updates the record.