CVE-2026-120057: high-severity vulnerability in PostgreSQL psqlODBC
psqlODBC large-object read overflows the application buffer
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.2%
psqlODBC copies the reply to a large-object read (loread) into the application's buffer using the length sent by the server, without comparing it to the buffer size. A server not trusted under current SSL settings, or a man-in-the-middle, can return more bytes than the buffer holds and overwrite adjacent memory in the client process with server-chosen bytes. Fetching any large-object column is sufficient to trigger it. Versions before psqlODBC 18.00.0006 are affected.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
PostgreSQL · psqlODBCRelated CVEs — PostgreSQL psqlODBC
In the same product, most dangerous first.
CVE-2026-120062HIGHpsqlODBC SQL injection through SQLSpecialColumns table and schema namesEPSS 0.4%CVE-2026-120067MEDIUMpsqlODBC stack buffer overflow copying ctid and oid values for updatable cursorsEPSS 0.3%CVE-2026-120064HIGHpsqlODBC does not validate column numbers and row indexes in binding and descriptor functionsEPSS 0.3%CVE-2026-120061HIGHpsqlODBC ODBC escape parser stack buffer overflowEPSS 0.3%CVE-2026-120065HIGHpsqlODBC does not escape a server-supplied column name in its updatable-cursor queriesEPSS 0.3%CVE-2026-120063MEDIUMpsqlODBC stack buffer overflow when quoting long schema and table namesEPSS 0.3%