CVE-2026-120067

NameCVE-2026-120067
DescriptionFor 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
psqlodbc (PTS)bookworm1:13.02.0000-2vulnerable
trixie1:17.00.0004-2vulnerable
forky1:18.00.0005-1vulnerable
sid1:18.00.0006-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
psqlodbcsource(unstable)1:18.00.0006-1

Notes

https://github.com/postgresql-interfaces/psqlodbc/security/advisories/GHSA-3r96-h2q4-6pxh

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