---
id: CVE-2026-65314
title: >-
  Electric Postgres Sync Excluded-Column Value Inference via Subset Where
  Clauses
summary: >-
  Electric Postgres Sync versions below 1.6.10 contains an information
  disclosure vulnerability that allows attackers to infer the values of excluded
  columns by crafting subset where clause conditions against shape responses.
  Attackers can…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-203
vendor: ElectricSQL
product: Electric Postgres Sync
affected:
  - electric_postgres_sync <= 1.6.10
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-07-22T15:34:48.524707Z'
published: '2026-07-21'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T14:18:15.142Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-65314'
references:
  - url: >-
      https://github.com/electric-sql/electric/security/advisories/GHSA-c82q-v86f-c87f
    label: GitHub Security Advisory
  - url: 'https://github.com/electric-sql/electric'
    label: Product
  - url: >-
      https://www.vulncheck.com/advisories/electric-postgres-sync-excluded-column-value-inference-via-subset-where-clauses
tags:
  - cve.org
epss: 0.00392
epssPercentile: 0.33155
ingestedAt: '2026-09-24T15:45:56.721Z'
---

## Overview

Electric Postgres Sync versions below 1.6.10 contains an information disclosure vulnerability that allows attackers to infer the values of excluded columns by crafting subset where clause conditions against shape responses. Attackers can observe whether subset where conditions match rows to deduce sensitive field data even though those columns are not returned in shape responses, bypassing column-based access restrictions.

## Affected

- `electric_postgres_sync <= 1.6.10`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.