low3.8
CVE-2026-16241
Integer underflow in PostgreSQL ECPG allows a database server administrator to achieve temporary denial of service against the ECPG client via sending a bytea …
Impact
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 18.6, 17.11, 16.15, 15.19, and 14.24 are affected.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Postgresql | Postgresql | from 14.0 before 14.24 from 15.0 before 15.19 from 16.0 before 16.15 from 17.0 before 17.11 from 18.0 before 18.5 |