CVE-2026-96883CWE-843

CVE-2026-96883

High · published September 25, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
50.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00650 · 50.5th percentile
Weakness
CWE-843 · Access of Resource Using Incompatible Type ('Type Confusion')
Published
2026-09-25T00:17Z
References (3)
https://aws.amazon.com/security/security-bulletins/2026-118-aws/ · ff89ba41-3aa1-4d27-914a-91399e9639e5https://github.com/aws/pgcollection/releases/tag/v2.1.2 · ff89ba41-3aa1-4d27-914a-91399e9639e5https://github.com/aws/pgcollection/security/advisories/GHSA-g539-cj32-hv6r · ff89ba41-3aa1-4d27-914a-91399e9639e5
EPSS history
Timeline
  • 26 SEP 03:27Z
    EPSS moved — → 1%
    epss
  • 24 SEP 19:05Z
    Type confusion in AWS pgcollection allows remote code execution
    cvelistv5