---
cve: "CVE-2026-73514"
severity: "HIGH"
cvss: 8.7
epss: "45%"
vendor: "PostGIS"
kev: false
exploited: false
published: "2026-08-13 16:19:05"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T00:26:40+02:00"
---

# CVE-2026-73514

> 8.7 HIGH · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- fa11ff53eb49b863d9ffff37f6afd5ff9299c581 (Commit)
- 423570b0dbf6cd9f6fc36de28a636e7b6e9aa8aa (Commit)

## Referenzen

- <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/>
- <https://github.com/postgis/address_standardizer/pull/3>
- <https://github.com/postgis/address_standardizer/pull/4>
- <https://github.com/postgis/address_standardizer/commit/423570b0dbf6cd9f6fc36de28a636e7b6e9aa8aa>
- <https://www.vulncheck.com/advisories/postgis-address-standardizer-out-of-bounds-write-via-standardize-address>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-73514) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_