{"id":"CVE-2026-100387","summary":"pgPointcloud through 1.2.5 heap out-of-bounds read via WKB deserialization","details":"pgPointcloud through 1.2.5 contains a heap out-of-bounds read vulnerability in dimensional patch WKB deserialization that allows authenticated database users to read adjacent heap memory. Attackers can supply crafted pcpatch values with attacker-controlled size fields to copy heap memory into stored patches for exfiltration or crash the PostgreSQL backend.","modified":"2026-09-27T03:46:30.380303198Z","published":"2026-09-25T20:13:05.306Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100387.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-125"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100387.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100387"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/pgpointcloud-through-1.2.5-heap-out-of-bounds-read-via-wkb-deserialization"},{"type":"REPORT","url":"https://github.com/pgpointcloud/pointcloud/issues/387"},{"type":"FIX","url":"https://github.com/pgpointcloud/pointcloud/pull/388"},{"type":"PACKAGE","url":"https://github.com/pgpointcloud/pointcloud"},{"type":"ARTICLE","url":"https://github.com/pgpointcloud/pointcloud/blob/v1.2.5/lib/pc_bytes.c#L1347-L1373"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pgpointcloud/pointcloud","events":[{"introduced":"0"},{"fixed":"b5db45acfbb26ab212dc8f7fa2a5449f5ba17377"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"1.2.5"},{"fixed":"1.2.5"}],"source":["AFFECTED_FIELD","DESCRIPTION"]}}],"versions":["v1.2.4","v1.2.3","v1.2.2","v1.2.1","v1.2.0","v1.1.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100387.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"}]}