Out-of-bounds Read in Pgpointcloud Pointcloud
CVE-2026-100387
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.
Vulnerability class: Buffer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/pgpointcloud/pointcloud/issues/387 (issue-tracking)
- github.com/pgpointcloud/pointcloud/pull/388 (issue-tracking, patch)
- github.com/pgpointcloud/pointcloud/blob/v1.2.5/lib/pc_bytes.c (technical-description)
- github.com/pgpointcloud/pointcloud (product)
- www.vulncheck.com/advisories/pgpointcloud-through-1.2.5-heap-out-of-bounds-read… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100387?
- CVE-2026-100387 is a high-severity vulnerability in Pgpointcloud Pointcloud, classified under Out-of-bounds Read. CVSS score: 8.1/10. Published 2026-09-25.
- How severe is CVE-2026-100387?
- High severity. CVSS v3 base score is 8.1 out of 10.