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.

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History

Thu, 13 Aug 2026 16:00:00 +0000

Type Values Removed Values Added
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.
Title PostGIS < 3.7.0beta2 Out-of-Bounds Read via FlatGeobuf Buffer
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H'}

cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-13T17:11:44.844Z

Reserved: 2026-08-12T19:29:19.865Z

Link: CVE-2026-73515

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-13T16:19:05.333

Modified: 2026-08-13T16:19:05.333

Link: CVE-2026-73515

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses