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CVE-2026-40906

Electric Sync-service SQL injection

9.9 CRITICALPublic exploitEPSS 0.53%
  1. Published21 Apr 2026

Description

Electric is a Postgres sync engine. From 1.1.12 to before 1.5.0, the order_by parameter in the ElectricSQL /v1/shape API is vulnerable to error-based SQL injection, allowing any authenticated user to read, write, and destroy the full contents of the underlying PostgreSQL database through crafted ORDER BY expressions. This vulnerability is fixed in 1.5.0.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

Electric Sync-service≥ 1.1.12 < 1.5.0

Remediation

Fixed in
Electric Sync-service≥ 1.5.0

References

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Frequently asked

Is CVE-2026-40906 being actively exploited?

CVE-2026-40906 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.53%.

How severe is CVE-2026-40906?

CVE-2026-40906 has a CVSS 3.1 base score of 9.9, rated critical. EPSS estimates a 0.53% probability of exploitation.

Which products are affected by CVE-2026-40906?

Affected products include Electric Sync-service.

How do I fix CVE-2026-40906?

Upgrade affected software to a fixed version, for example Electric Sync-service 1.5.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-40906 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.