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Vulnerability record · CVE-2024-27304 · published 6 March 2024

CVE-2024-27304: Jackc pgproto3 sql injection vulnerability

Jackc · Pgproto3

pgx is a PostgreSQL driver and toolkit for Go. SQL injection can occur if an attacker can cause a single query or bind message to exceed 4 GB in size. An integer overflow in the calculated message size can cause the one large message to be sent as multiple messages under the attacker's control. The problem is resolved in v4.18.2 and v5.5.4. As a workaround, reject user input large enough to cause a single query or bind message to exceed 4 GB in size.

9.8 CVSS 3.1 Critical EPSS 1.1% · top 35.5% CWE-89 · SQL injectionCWE-190 · Integer overflow
9.8CVSS 3.1 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
13References
17 Jun 2026Last modified by NVD

Description

pgx is a PostgreSQL driver and toolkit for Go. SQL injection can occur if an attacker can cause a single query or bind message to exceed 4 GB in size. An integer overflow in the calculated message size can cause the one large message to be sent as multiple messages under the attacker's control. The problem is resolved in v4.18.2 and v5.5.4. As a workaround, reject user input large enough to cause a single query or bind message to exceed 4 GB in size.

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

Affected products

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

References

LinkTags
https://github.com/jackc/pgproto3/commit/945c2126f6db8f3bea7eeebe307c01fe92bca007 Patch
https://github.com/jackc/pgproto3/security/advisories/GHSA-7jwh-3vrq-q3m8 Vendor Advisory
https://github.com/jackc/pgx/commit/adbb38f298c76e283ffc7c7a3f571036fea47fd4 Patch
https://github.com/jackc/pgx/commit/c543134753a0c5d22881c12404025724cb05ffd8 Patch
https://github.com/jackc/pgx/commit/f94eb0e2f96782042c96801b5ac448f44f0a81df Patch
https://github.com/jackc/pgx/security/advisories/GHSA-mrww-27vc-gghv Vendor Advisory
https://www.youtube.com/watch?v=Tfg1B8u1yvE Press/Media Coverage
https://github.com/jackc/pgproto3/commit/945c2126f6db8f3bea7eeebe307c01fe92bca007 Patch
https://github.com/jackc/pgproto3/security/advisories/GHSA-7jwh-3vrq-q3m8 Vendor Advisory
https://github.com/jackc/pgx/commit/adbb38f298c76e283ffc7c7a3f571036fea47fd4 Patch
https://github.com/jackc/pgx/commit/c543134753a0c5d22881c12404025724cb05ffd8 Patch
https://github.com/jackc/pgx/commit/f94eb0e2f96782042c96801b5ac448f44f0a81df Patch
https://github.com/jackc/pgx/security/advisories/GHSA-mrww-27vc-gghv Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2024-27304), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.