CVE-2026-32687— SQL injection via channel name in Postgrex.Notifications.listen/3 and unlisten/3
Possible ATT&CK Techniques 2AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| elixir-ecto | postgrex | 0.16.0< 0.22.2 | affected |
266b530faf9bde094e31e0e4ab851f933fadc0f5< 7cdedbd4316bb65f82e6a9a4f922c0ac491cb770 | affected |
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I. Basic Information for CVE-2026-32687
Vulnerability Information
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Vulnerability Title
SQL injection via channel name in Postgrex.Notifications.listen/3 and unlisten/3
Source: NVD (National Vulnerability Database)
Vulnerability Description
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in elixir-ecto postgrex ('Elixir.Postgrex.Notifications' module) allows SQL Injection. The channel argument passed to 'Elixir.Postgrex.Notifications':listen/3 and 'Elixir.Postgrex.Notifications':unlisten/3 is interpolated directly into LISTEN "..." / UNLISTEN "..." SQL statements without escaping the " character. An attacker who can influence the channel name can inject a " to break out of the quoted identifier and append arbitrary SQL. Because the notifications connection uses the PostgreSQL simple query protocol, multi-statement payloads are accepted, allowing DDL and DML commands to be chained (e.g. ; DROP TABLE ...; --). The same unsanitized interpolation also occurs in handle_connect/1 when replaying LISTEN commands after a reconnect. This vulnerability is associated with program file lib/postgrex/notifications.ex and program routines 'Elixir.Postgrex.Notifications':listen/3, 'Elixir.Postgrex.Notifications':unlisten/3, 'Elixir.Postgrex.Notifications':handle_connect/1. This issue affects postgrex: from 0.16.0 before 0.22.2, from pkg:github/elixir-ecto/postgrex@266b530faf9bde094e31e0e4ab851f933fadc0f5 before 0.22.2.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Postgrex SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Postgrex是elixir-ecto开源的一个Elixir语言的PostgreSQL数据库驱动。 postgrex 0.16.0版本至0.22.2之前版本存在SQL注入漏洞，该漏洞源于Elixir.Postgrex.Notifications模块中未对特殊元素进行中和，可能导致SQL注入攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| elixir-ecto | postgrex | 0.16.0 ~ 0.22.2 | cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:* | |
| elixir-ecto | postgrex | 266b530faf9bde094e31e0e4ab851f933fadc0f5 ~ 7cdedbd4316bb65f82e6a9a4f922c0ac491cb770 | cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:* |
II. Public POCs for CVE-2026-32687
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|---|
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IV. Related Vulnerabilities
Same weakness: CWE-89
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V. Comments for CVE-2026-32687
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