GHSA-J88V-2CHJ-QFWX

Advisory lineage Upstream: 0 Downstream: 1
Downstream
CVE-2026-41889
Published: 22 Apr 2026, 20:46
Last modified:23 Apr 2026, 14:14

Vulnerability Summary

Overall Risk (default)
minimal
9/100
CVSS Score
2.3 LOW
4.0 (osv_go)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

22 Apr 2026, 20:46
Published
Vulnerability first disclosed
23 Apr 2026, 14:14
Last Modified
Vulnerability information updated

Description

pgx: SQL Injection via placeholder confusion with dollar quoted string literals ### Impact SQL Injection can occur when: 1. The non-default simple protocol is used. 2. A dollar quoted string literal is used in the SQL query. 3. That string literal contains text that would be would be interpreted as a placeholder outside of a string literal. 4. The value of that placeholder is controllable by the attacker. e.g. ```go attackValue := `$tag$; drop table canary; --` _, err = tx.Exec(ctx, `select $tag$ $1 $tag$, $1`, pgx.QueryExecModeSimpleProtocol, attackValue) ``` This is unlikely to occur outside of a contrived scenario. ### Patches The problem is resolved in v5.9.2. ### Workarounds Do not use the simple protocol to execute queries matching all the above conditions.

CVSS Metrics

  • v4.0•LOW•Score: 2.3CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Affected Systems

  • github.com/jackc•pgx

    ≤ 3.6.2

  • github.com/jackc/pgx•v4

    ≤ 4.18.3

  • github.com/jackc/pgx•v5

    < 5.9.2

References (4)