{"id":"CVE-2026-120067","published":"2026-11-02T19:18:04.120","lastModified":"2026-11-02T20:17:40.043","description":"For updatable cursors, which are enabled by default, psqlODBC adds hidden ctid and, for tables with OIDs, oid columns to the query. It copies each value into a 32-byte stack buffer using the length the server sent, without checking it against the buffer size, so a value of 32 bytes or more writes past the buffer. A server not trusted under current SSL settings can send such a value. So can any database user who can create a view with its own column named ctid that the application reads with an updatable cursor. Builds with _FORTIFY_SOURCE abort; other builds overwrite adjacent stack memory. Versions before psqlODBC 18.00.0006 are affected.","cvssScore":5.9,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-121","CWE-787"],"vendors":[],"products":[],"references":[{"url":"https://github.com/postgresql-interfaces/psqlodbc/security/advisories/GHSA-3r96-h2q4-6pxh","tags":[]}],"exploitRefs":[{"url":"https://github.com/postgresql-interfaces/psqlodbc/security/advisories/GHSA-3r96-h2q4-6pxh","tags":[]}],"hasPoc":true,"ai":null}