{"id":"CVE-2026-73515","summary":"PostGIS \u003c 3.7.0beta2 Out-of-Bounds Read via FlatGeobuf Buffer","details":"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.","modified":"2026-08-15T11:47:46.843628127Z","published":"2026-08-13T15:37:09.289Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-125"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73515.json"},"references":[{"type":"ADVISORY","url":"https://gitea.osgeo.org/postgis/postgis/raw/tag/3.7.0beta2/NEWS"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73515.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73515"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/postgis-0beta2-out-of-bounds-read-via-flatgeobuf-buffer"},{"type":"PACKAGE","url":"https://github.com/postgis/postgis"},{"type":"EVIDENCE","url":"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/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/postgis/postgis","events":[{"introduced":"0"},{"fixed":"6e55c6233aee3274868e3f27b75829aea15de2a9"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"3.7.0beta2"}],"source":"AFFECTED_FIELD"}}],"versions":["3.7.0beta1","3.7.0alpha1","3.6.0rc2","3.6.0rc1","3.6.0beta1","3.5.0","3.5.0rc1","3.5.0beta1","3.5.0alpha2","3.5.0alpha1","3.4.0rc1","3.4.0beta2","3.4.0beta1","3.3.0rc2","3.3.0rc1","3.3.0alpha1","3.2.0","3.2.0rc1","3.2.0beta3","3.2.0beta2","3.2.0beta1","3.2.0alpha1","3.1.0rc1","3.1.0beta2","3.1.0beta1","3.1.0alpha3","3.1.0alpha2","3.1.0alpha1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73515.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}