CVE-2026-100387 pgPointcloud through 1.2.5 heap out-of-bounds read via WKB deserialization
Authenticated users can read heap memory or crash the database via crafted WKB data in the pgPointcloud extension.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-100387?
CVE-2026-100387 is a high-severity memory corruption vulnerability in pgpointcloud pointcloud, published on 25 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-125
Which versions are affected by CVE-2026-100387?
How do I fix CVE-2026-100387?
No fix has been published for CVE-2026-100387 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-100387 being exploited?
There is no known exploitation of CVE-2026-100387 in the wild and no public exploit code.
Sources
Also known as GHSA-cfw8-qrr2-2ccr.