CVE-2026-73515

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

Published Aug 13, 2026 CVSS 4.0 · 7.2 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:2.3:a:postgis:postgis:*:*:*:*:*:postgresql:*:*
Type Values Removed Values Added
First Time appeared Postgis
Postgis postgis
Vendors & Products Postgis
Postgis postgis
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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Aug 14, 2026, 4:52 PM
Reserved
Aug 12, 2026, 7:29 PM
Status
Awaiting Analysis
Published
Aug 13, 2026, 4:19 PM
Modified
Sep 24, 2026, 8:02 PM
Severity
Important
Public date
Aug 13, 2026, 3:37 PM