{"id":"CVE-2026-32687","aliases":["EEF-CVE-2026-32687","GHSA-r73h-97w8-m54h"],"url":"https://o3.security/vulnerability/CVE-2026-32687","summary":"SQL injection via channel name in Postgrex.Notifications.listen/3 and unlisten/3","details":"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.","published":"2026-05-12T14:18:07.607Z","modified":"2026-08-12T03:51:42.014720697Z","cvss":null,"epss":{"score":0.00198,"percentile":0.09882,"asOf":"2026-08-14"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Hex","name":"postgrex","fixedVersion":"0.22.2"}],"fix":{"url":"https://github.com/elixir-ecto/postgrex/commit/7cdedbd4316bb65f82e6a9a4f922c0ac491cb770","label":"elixir-ecto/postgrex@7cdedbd"},"references":[{"type":"WEB","url":"https://cna.erlef.org/cves/CVE-2026-32687.html"},{"type":"WEB","url":"https://github.com"},{"type":"WEB","url":"https://osv.dev/vulnerability/EEF-CVE-2026-32687"},{"type":"WEB","url":"https://repo.hex.pm"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32687.json"},{"type":"ADVISORY","url":"https://github.com/elixir-ecto/ecto/security/advisories/GHSA-r73h-97w8-m54h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32687"},{"type":"FIX","url":"https://github.com/elixir-ecto/postgrex/commit/7cdedbd4316bb65f82e6a9a4f922c0ac491cb770"},{"type":"PACKAGE","url":"https://github.com/elixir-ecto/postgrex.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:42.014720697Z"}}