Bug 2520307

Summary: CVE-2026-73515 postgresql16-postgis: PostGIS: Memory Disclosure and Denial of Service via Malformed FlatGeobuf Buffer [fedora-all]
Product: [Fedora] Fedora Reporter: Laura Pardo <lpardo>
Component: postgresql16-postgisAssignee: Sandro Mani <manisandro>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: manisandro
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["bb2da580-b9c0-44d1-aa08-111d982c4f2d"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 2515434    

Description Laura Pardo 2026-08-20 13:24:05 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.