CVE-2026-51992
Remote SQL injection in ClickHouse 'create dictionaries' allows RCE.
Is CVE-2026-51992 being exploited?
Not confirmed. CVE-2026-51992 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.
How severe is CVE-2026-51992?
CVE-2026-51992 is rated Critical. 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-2026-51992?
Yes. A fix has been recorded for CVE-2026-51992. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-51992 affect?
CVE-2026-51992 affects ClickHouse Server <= 26.3.9.8. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-51992?
Upgrade ClickHouse to >26.3.9.8 or apply vendor patch; restrict network access until patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote SQL injection in 'create dictionaries' enabling arbitrary code execution on the ClickHouse server (remote RCE).
Immediate action required