---
id: CVE-2026-100387
title: >-
  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
summary: >-
  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
  …
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H'
cwe:
  - CWE-125
vendor: pgpointcloud
product: pointcloud
affected:
  - pointcloud <= 1.2.5
published: '2026-09-25'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T21:17:22.163'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100387'
references:
  - url: 'https://github.com/pgpointcloud/pointcloud'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/pgpointcloud/pointcloud/blob/v1.2.5/lib/pc_bytes.c#L1347-L1373
    label: disclosure@vulncheck.com
  - url: 'https://github.com/pgpointcloud/pointcloud/issues/387'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/pgpointcloud/pointcloud/pull/388'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/pgpointcloud-through-1.2.5-heap-out-of-bounds-read-via-wkb-deserialization
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-25T21:19:40.141Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.