References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].

Change History

Integer underflow in PostgreSQL ECPG allows a database server administrator to achieve temporary denial of service against the ECPG client via sending a bytea value lacking the mandatory prefix.  The client overwrites a huge memory region with bytes outside attacker knowledge or control.  This typically yields a simple SIGSEGV, but rare cases might achieve client-specific integrity impact via the write.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.

AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L

CWE-191

https://www.postgresql.org/support/security/CVE-2026-16241/

[{"vendor":"n/a","product":"PostgreSQL","defaultStatus":"unaffected","versions":[{"version":"18","lessThan":"18.5","versionType":"rpm","status":"affected"},{"version":"17","lessThan":"17.11","versionType":"rpm","status":"affected"},{"version":"16","lessThan":"16.15","versionType":"rpm","status":"affected"},{"version":"15","lessThan":"15.19","versionType":"rpm","status":"affected"},{"version":"0","lessThan":"14.24","versionType":"rpm","status":"affected"}]}]