Vulnerability · Published Jul 21, 2026 · Assigned by VulnCheck

CVE-2026-65314Electric Postgres Sync Excluded-Column Value Inference via Subset Where Clauses

Medium 4.3

In plain English

A medium-severity security flaw in Electric Postgres Sync from ElectricSQL. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.4%top 66.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 products (as reported)

Vendor	Product	Versions
ElectricSQL	Electric Postgres Sync	0 – through 1.6.10

Weakness: CWE-203 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

GitHub Security Advisory vendor-advisory
Product patch
https://www.vulncheck.com/advisories/electric-postgres-sync-excluded-column-value-inference-via-subset-where-clauses third-party-advisory