{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-32687", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "state": "PUBLISHED", "assignerShortName": "EEF", "dateReserved": "2026-03-13T09:12:14.475Z", "datePublished": "2026-05-12T14:18:07.607Z", "dateUpdated": "2026-05-12T19:44:35.571Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://hex.pm/packages", "cpes": ["cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Postgrex.Notifications'"], "packageName": "postgrex", "packageURL": "pkg:hex/postgrex", "product": "postgrex", "programFiles": ["lib/postgrex/notifications.ex"], "programRoutines": [{"name": "'Elixir.Postgrex.Notifications':listen/3"}, {"name": "'Elixir.Postgrex.Notifications':unlisten/3"}, {"name": "'Elixir.Postgrex.Notifications':handle_connect/1"}], "repo": "https://github.com/elixir-ecto/postgrex.git", "vendor": "elixir-ecto", "versions": [{"lessThan": "0.22.2", "status": "affected", "version": "0.16.0", "versionType": "semver"}]}, {"collectionURL": "https://github.com", "cpes": ["cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:*"], "defaultStatus": "unaffected", "modules": ["'Elixir.Postgrex.Notifications'"], "packageName": "elixir-ecto/postgrex", "packageURL": "pkg:github/elixir-ecto/postgrex", "product": "postgrex", "programFiles": ["lib/postgrex/notifications.ex"], "programRoutines": [{"name": "'Elixir.Postgrex.Notifications':listen/3"}, {"name": "'Elixir.Postgrex.Notifications':unlisten/3"}, {"name": "'Elixir.Postgrex.Notifications':handle_connect/1"}], "repo": "https://github.com/elixir-ecto/postgrex.git", "vendor": "elixir-ecto", "versions": [{"lessThan": "7cdedbd4316bb65f82e6a9a4f922c0ac491cb770", "status": "affected", "version": "266b530faf9bde094e31e0e4ab851f933fadc0f5", "versionType": "git"}]}], "configurations": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>The application must call <tt>'Elixir.Postgrex.Notifications':listen/3</tt> or <tt>'Elixir.Postgrex.Notifications':unlisten/3</tt> with a channel name derived from untrusted user input.</p>"}], "value": "The application must call 'Elixir.Postgrex.Notifications':listen/3 or 'Elixir.Postgrex.Notifications':unlisten/3 with a channel name derived from untrusted user input."}], "cpeApplicability": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:*", "versionEndExcluding": "0.22.2", "versionStartIncluding": "0.16.0", "vulnerable": true}], "negate": false, "operator": "OR"}], "operator": "AND"}], "credits": [{"lang": "en", "type": "finder", "value": "Peter Ullrich"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in elixir-ecto postgrex (<tt>'Elixir.Postgrex.Notifications'</tt> module) allows SQL Injection.<p>The <tt>channel</tt> argument passed to <tt>'Elixir.Postgrex.Notifications':listen/3</tt> and <tt>'Elixir.Postgrex.Notifications':unlisten/3</tt> is interpolated directly into <tt>LISTEN \"...\"</tt> / <tt>UNLISTEN \"...\"</tt> SQL statements without escaping the <tt>\"</tt> character. An attacker who can influence the channel name can inject a <tt>\"</tt> 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. <tt>; DROP TABLE ...; --</tt>). The same unsanitized interpolation also occurs in <tt>handle_connect/1</tt> when replaying LISTEN commands after a reconnect.</p><p>This vulnerability is associated with program file <tt>lib/postgrex/notifications.ex</tt> and program routines <tt>'Elixir.Postgrex.Notifications':listen/3</tt>, <tt>'Elixir.Postgrex.Notifications':unlisten/3</tt>, <tt>'Elixir.Postgrex.Notifications':handle_connect/1</tt>.</p><p>This issue affects postgrex: from 0.16.0 before 0.22.2, from pkg:github/elixir-ecto/postgrex@266b530faf9bde094e31e0e4ab851f933fadc0f5 before 0.22.2.</p>"}], "value": "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."}], "impacts": [{"capecId": "CAPEC-66", "descriptions": [{"lang": "en", "value": "CAPEC-66 SQL Injection"}]}], "metrics": [{"cvssV4_0": {"attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "baseScore": 7.5, "baseSeverity": "HIGH", "privilegesRequired": "NONE", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "vectorString": "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", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-89", "description": "CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "shortName": "EEF", "dateUpdated": "2026-05-12T14:20:21.684Z"}, "references": [{"tags": ["vendor-advisory", "related"], "url": "https://github.com/elixir-ecto/ecto/security/advisories/GHSA-r73h-97w8-m54h"}, {"tags": ["related"], "url": "https://cna.erlef.org/cves/CVE-2026-32687.html"}, {"tags": ["related"], "url": "https://osv.dev/vulnerability/EEF-CVE-2026-32687"}, {"tags": ["patch"], "url": "https://github.com/elixir-ecto/postgrex/commit/7cdedbd4316bb65f82e6a9a4f922c0ac491cb770"}], "source": {"discovery": "EXTERNAL"}, "title": "SQL injection via channel name in Postgrex.Notifications.listen/3 and unlisten/3", "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-12T19:44:22.093287Z", "id": "CVE-2026-32687", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-12T19:44:35.571Z"}}]}}

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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.", "supportingMedia": [{"type": "text/html", "value": "Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in elixir-ecto postgrex (<tt>'Elixir.Postgrex.Notifications'</tt> module) allows SQL Injection.<p>The <tt>channel</tt> argument passed to <tt>'Elixir.Postgrex.Notifications':listen/3</tt> and <tt>'Elixir.Postgrex.Notifications':unlisten/3</tt> is interpolated directly into <tt>LISTEN \"...\"</tt> / <tt>UNLISTEN \"...\"</tt> SQL statements without escaping the <tt>\"</tt> character. An attacker who can influence the channel name can inject a <tt>\"</tt> 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. <tt>; DROP TABLE ...; --</tt>). The same unsanitized interpolation also occurs in <tt>handle_connect/1</tt> when replaying LISTEN commands after a reconnect.</p><p>This vulnerability is associated with program file <tt>lib/postgrex/notifications.ex</tt> and program routines <tt>'Elixir.Postgrex.Notifications':listen/3</tt>, <tt>'Elixir.Postgrex.Notifications':unlisten/3</tt>, <tt>'Elixir.Postgrex.Notifications':handle_connect/1</tt>.</p><p>This issue affects postgrex: from 0.16.0 before 0.22.2, from pkg:github/elixir-ecto/postgrex@266b530faf9bde094e31e0e4ab851f933fadc0f5 before 0.22.2.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-89", "description": "CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')"}]}], "configurations": [{"lang": "en", "value": "The application must call 'Elixir.Postgrex.Notifications':listen/3 or 'Elixir.Postgrex.Notifications':unlisten/3 with a channel name derived from untrusted user input.", "supportingMedia": [{"type": "text/html", "value": "<p>The application must call <tt>'Elixir.Postgrex.Notifications':listen/3</tt> or <tt>'Elixir.Postgrex.Notifications':unlisten/3</tt> with a channel name derived from untrusted user input.</p>", "base64": false}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:elixir-ecto:postgrex:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "0.22.2", "versionStartIncluding": "0.16.0"}], "operator": "OR"}], "operator": "AND"}], "providerMetadata": {"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "shortName": "EEF", "dateUpdated": "2026-05-12T14:20:21.684Z"}}}, "cveMetadata": {"cveId": "CVE-2026-32687", "state": "PUBLISHED", "dateUpdated": "2026-05-12T19:44:35.571Z", "dateReserved": "2026-03-13T09:12:14.475Z", "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db", "datePublished": "2026-05-12T14:18:07.607Z", "assignerShortName": "EEF"}, "dataVersion": "5.2"}

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