CVE-2026-73515 — 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-2026-73515HIGH

PostGIS < 3.7.0beta2 Out-of-Bounds Read via FlatGeobuf Buffer

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   L   N   H   N   H    7.2   .0041   34.7     —

AFFECTED
  Product  Versions     Fixed
  PostGIS  unspecified  —

TIMELINE
  Aug 12  Reserved by VulnCheck
  Aug 13  Published (CNA: VulnCheck)
  Aug 14  EXPLOIT PUBLISHED — CVE-2026-73515 (PostGIS). Public exploit reference added.

CWE-125 · CNA: VulnCheck · CVSS v4.0 · 3 references · NVD status: Received

Description

PostGIS before 3.7.0beta2 contains an out-of-bounds read vulnerability that allows attackers to cause memory disclosure or a server crash by supplying a malformed FlatGeobuf buffer. The FlatGeobuf property metadata decoder verifies that a string length field is present but fails to verify that the subsequent string body is contained within the supplied buffer before materializing it into a SQL-visible value, enabling memory disclosure or denial of service.

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-2026-73515 (PostGIS). Public exploit reference added.

Affected

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

Weaknesses

CWE-125

References (3)

https://gitea.osgeo.org/postgis/postgis/raw/tag/3.7.0beta2/NEWS [release-notes]
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-0beta2-out-of-bounds-read-via-flatgeobuf-buffer [third-party-advisory]

Authoritative record: CVE-2026-73515 at cve.org

Vendors: postgis

Weaknesses: CWE-125

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-73515 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.