What’s Vulnerable › Vulnerabilities

CVE-2026-41889: pgx: SQL Injection via placeholder confusion with dollar quoted string literals

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-08 · updated 2026-10-26
• Weakness: CWE-89

Description

pgx is a PostgreSQL driver and toolkit for Go. Prior to version 5.9.2, SQL injection can occur when the non-default simple protocol is used, a dollar quoted string literal is used in the SQL query, that string literal contains text that would be would be interpreted as a placeholder outside of a string literal, and the value of that placeholder is controllable by the attacker. This issue has been patched in version 5.9.2.

Affected products

• jackc pgx: before 5.9.2 — fixed in 5.9.2

How to fix

Upgrade to a fixed version: jackc pgx 5.9.2. Check the vendor advisory for mitigations.

References

• https://github.com/jackc/pgx/commit/60644f84918a8af66d14a4b0d865d4edafd955da
• https://github.com/jackc/pgx/releases/tag/v5.9.2
• https://github.com/jackc/pgx/security/advisories/GHSA-j88v-2chj-qfwx

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