SQL injection via channel name in Postgrex.Notifications.listen/3 and unlisten/3_CVE-2026-32687

{
    "lastseen": "",
    "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.\n\nThe 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.\n\nThis 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.\n\nThis issue affects postgrex: from 0.16.0 before 0.22.2, from pkg:github/elixir-ecto/postgrex@266b530faf9bde094e31e0e4ab851f933fadc0f5 before 0.22.2.",
    "published": "2026-05-12T14:18:07.607Z",
    "modified": "2026-05-12T14:20:21.684Z",
    "type": "cve",
    "title": "SQL injection via channel name in Postgrex.Notifications.listen/3 and unlisten/3",
    "source": "EEF",
    "references": "https://github.com/elixir-ecto/ecto/security/advisories/GHSA-r73h-97w8-m54h\nhttps://cna.erlef.org/cves/CVE-2026-32687.html\nhttps://osv.dev/vulnerability/EEF-CVE-2026-32687\nhttps://github.com/elixir-ecto/postgrex/commit/7cdedbd4316bb65f82e6a9a4f922c0ac491cb770",
    "id": "CVE-2026-32687",
    "bulletinFamily": "",
    "cwe": [
        "CWE-89"
    ],
    "cvelist": null,
    "sourceData": "elixir-ecto postgrex 0.16.0\nelixir-ecto postgrex 266b530faf9bde094e31e0e4ab851f933fadc0f5",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
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        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
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            "privilegesRequired": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "postgrex",
    "version": "0.16.0",
    "vendor": "elixir-ecto",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
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    "ai_score": 0
}