8.1High
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.
What this means for your business
- An attacker can use it remotely, over a network, with an ordinary user login, and without anyone at your company clicking anything.
What to do
- 1Ask your IT team or provider whether any of your systems use the affected product.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
Not sure if your company is exposed?
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Scoring
- CVSS
- 8.1 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H- CVSS v4
- 7.2
- Weakness
- CWE-125
- Assigned by
- disclosure@vulncheck.com
Dates
- Published
- 2026-09-25
- Last modified
- 2026-09-25
- Sources
- NVD
References
- https://github.com/pgpointcloud/pointcloud
- https://github.com/pgpointcloud/pointcloud/blob/v1.2.5/lib/pc_bytes.c#L1347-L1373
- https://github.com/pgpointcloud/pointcloud/issues/387
- https://github.com/pgpointcloud/pointcloud/pull/388
- https://www.vulncheck.com/advisories/pgpointcloud-through-1.2.5-heap-out-of-bounds-read-via-wkb-deserialization