CVE-2026-96883

High

Description

pgcollection is an open source extension to PostgreSQL. A type confusion issue in AWS pgcollection 2.0.0 through 2.1.1 might allow an authenticated remote user to execute arbitrary code as the postgres operating system user via crafted SQL statements that rely on mismatched type metadata in collection value retrieval and array conversion functions. To remediate this issue, users should upgrade to version 2.1.2 or later.

SeverityHigh

CVSS8.8

Exploit probability—

ProductAws Pgcollection

PublishedSep 24, 2026

First seenSep 24, 2026

Weakness typeCWE-843CWE-843

How to fix

Patches

github.com/aws/pgcollection/releases/tag/v2.1.2

Vendor advisories

aws.amazon.com/security/security-bulletins/2026-118-aws/

Affected products

Product	Affected versions	Fixed in
AWS pgcollection	2.0.0 ≤ v ≤ 2.1.1	—

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