CVE-2026-40906
SQLi via Electric /v1/shape order_by lets authenticated users read/write/destroy DB (pre-1.5.0)
WAF coverage: SQL injection. Signatures match well at the request layer.
Also consider: parameterized queries · ORM
Is CVE-2026-40906 being exploited?
Not confirmed. CVE-2026-40906 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.46% probability of exploitation in the next 30 days.
How severe is CVE-2026-40906?
CVE-2026-40906 is rated Critical with a CVSS score of 9.9. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-40906?
Yes. A fix has been recorded for CVE-2026-40906. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-40906 affect?
CVE-2026-40906 affects Electric Postgres sync engine (versions 1.1.12–1.4.x). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-40906?
Upgrade to 1.5.0+
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated attacker can use ORDER BY to cause error-based SQLi, reading, modifying, or destroying the entire PostgreSQL DB.
Patch when possible
- affected>= 1.1.12 and < 1.5.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.