CVE intelligence and bounded remediation
CVE-2024-27304 — pgx is a PostgreSQL driver and toolkit for Go
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.
- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Published
- 2024-03-06
- CISA KEV
- Not currently listed
- Ecosystem
- software/application
- Weaknesses
- CWE-89, CWE-190
Affected products
- jackc / pgproto3
- jackc / pgx
Showing 2 representative product identities from 3 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.
Matched remediation archetype
SQL and data-query injection
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Check exposure
- Trace request, message, file, and stored values into SQL, ORM query fragments, filters, sort expressions, and other data-query languages.
- Inventory database roles, reachable schemas, multi-tenant boundaries, and whether stacked or administrative operations are enabled.
- Check both direct queries and second-order use of previously stored values.
Remediate safely
- Use parameterized queries or safe query builders for all values; map identifiers and operators through explicit allowlists.
- Remove raw query concatenation and give the application account only the tables and operations it requires.
- Update affected data-access components and add regression tests for query structure preservation with inert edge-case inputs.
Authoritative sources
Complete CVE record and remediation plan
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