CVE-2026-75852
Unauthenticated data modification via ArcadeDB MongoDB wire-protocol plugin
Is CVE-2026-75852 being exploited?
Not confirmed. CVE-2026-75852 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 0.45% probability of exploitation in the next 30 days.
How severe is CVE-2026-75852?
CVE-2026-75852 is rated Critical with a CVSS score of 9.3. 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-2026-75852?
Yes. A fix has been recorded for CVE-2026-75852. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-75852 affect?
CVE-2026-75852 affects ArcadeDB < 26.8.1, MongoDB wire-protocol plugin, Instances exposing TCP 27017. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-75852?
Upgrade to ArcadeDB 26.8.1; block/limit 27017; restrict network access and monitor logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated attackers can insert/find/update/delete/create on any database via port 27017, enabling data theft, tampering, or deletion.
Immediate action required
- affected< 26.8.1
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.