Affects a widely-used enterprise DB component (MySQL NDB Cluster); remote data access could disrupt data integrity across deployments.
CVE-2026-46861
Remote low-priv attacker via HTTP can compromise MySQL NDB Cluster.
Is CVE-2026-46861 being exploited?
Not confirmed. CVE-2026-46861 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 0.36% probability of exploitation in the next 30 days.
How severe is CVE-2026-46861?
CVE-2026-46861 is rated Critical with a CVSS score of 9.6. 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-2026-46861?
Yes. A fix has been recorded for CVE-2026-46861. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-46861 affect?
CVE-2026-46861 affects MySQL NDB Cluster, NDB Operator, Oracle MySQL NDB. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-46861?
Apply vendor patch when released
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can read and modify/delete data across the NDB Cluster, risking data confidentiality and integrity.
Patch when possible
- affected>= 8.0.11 and <= 8.0.46
- affected>= 8.4.0 and <= 8.4.9
- affected>= 9.0.0 and <= 9.7.0
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.