CVE-2026-75851
Auth bypass in ArcadeDB async commands allows server-wide admin creation.
Is CVE-2026-75851 being exploited?
Not confirmed. CVE-2026-75851 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 0.32% probability of exploitation in the next 30 days.
How severe is CVE-2026-75851?
CVE-2026-75851 is rated Critical with a CVSS score of 9.4. 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-2026-75851?
Yes. A fix has been recorded for CVE-2026-75851. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-75851 affect?
CVE-2026-75851 affects ArcadeDB Server (com.arcadedb:arcadedb-server) <= 26.7.3. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-75851?
Upgrade to 26.8.1 immediately; restrict API access and audit for rogue admins.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated low-privilege user can run async JS commands to create a server-wide admin and achieve arbitrary host access (full admin takeover).
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.