CVE-2026-73514: Postgis Address Standardizer

High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days.

The address_standardizer extension for PostGIS through 3.7.0, fixed in commit 423570b, contains an out-of-bounds write vulnerability that allows a database user with the ability to supply caller-controlled relation names to standardize_address() to trigger memory corruption by providing a rules table with a classification Type value exceeding the fixed class range. Attackers can craft a malicious rules table entry with an oversized rule type value that is used without bounds checking as an index into an internal output-link table, resulting in an out-of-bounds write.

Affected products

• Postgis Address Standardizer

Published 2026-08-13. Last modified 2026-09-24.