CVE-2026-73514 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-73514HIGH

PostGIS address_standardizer Out-of-Bounds Write via standardize_address()

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   L   N   H   H   H    8.7   .0044   37.2     —

AFFECTED
  Product               Versions     Fixed
  address_standardizer  unspecified  —

TIMELINE
  Aug 12  Reserved by VulnCheck
  Aug 13  Published (CNA: VulnCheck)
  Aug 14  EXPLOIT PUBLISHED — CVE-2026-73514 (PostGIS address_standardizer). Public exploit reference added.

CWE-787 · CNA: VulnCheck · CVSS v4.0 · 5 references · NVD status: Received

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 12, 2026	Reserved	Reserved by VulnCheck
August 13, 2026	Published	Published (CNA: VulnCheck)
August 14, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-73514 (PostGIS address_standardizer). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
PostGIS	address_standardizer	—	—	—

Weaknesses

CWE-787

References (5)

https://github.com/postgis/address_standardizer/commit/423570b0dbf6cd9f6fc36de28a636e7b6e9aa8aa [patch]
https://github.com/postgis/address_standardizer/pull/3 [issue-tracking]
https://github.com/postgis/address_standardizer/pull/4 [issue-tracking, patch]
https://mehmetince.net/part-1-6-systemic-risks-in-the-managed-postgresql-industry-extension-risks-are-real-exploiting-postgis-memory-corruption-bug-at-neondb-supabase-and-many-more/ [technical-description, exploit]
https://www.vulncheck.com/advisories/postgis-address-standardizer-out-of-bounds-write-via-standardize-address [third-party-advisory]

Authoritative record: CVE-2026-73514 at cve.org

Vendors: postgis

Weaknesses: CWE-787

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-73514 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.