What is CVE-2026-65314?

CVE-2026-65314 is a medium-severity vulnerability in Electricsql Electric Postgres Sync, classified under Observable Discrepancy. CVSS score: 4.3/10. Published 2026-07-21.

How severe is CVE-2026-65314?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Electricsql Electric Postgres Sync

CVE-2026-65314

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.

Published 2026-07-21 · last modified 2026-07-23.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (32.1th percentile), scored 2026-10-22.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Electricsql Electric Postgres Sync — versions 0

Weakness classification (CWE)

CWE-203 — Observable Discrepancy

References

GitHub Security Advisory (vendor-advisory)
Product (patch)
www.vulncheck.com/advisories/electric-postgres-sync-excluded-column-value-infer… (third-party-advisory)

Frequently asked questions

What is CVE-2026-65314?: CVE-2026-65314 is a medium-severity vulnerability in Electricsql Electric Postgres Sync, classified under Observable Discrepancy. CVSS score: 4.3/10. Published 2026-07-21.
How severe is CVE-2026-65314?: Medium severity. CVSS v3 base score is 4.3 out of 10.