CVE-2026-75855
Authenticated path-traversal in ArcadeDB API allows arbitrary file write/delete.
Is CVE-2026-75855 being exploited?
Not confirmed. CVE-2026-75855 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 0.39% probability of exploitation in the next 30 days.
How severe is CVE-2026-75855?
CVE-2026-75855 is rated High with a CVSS score of 8.4. 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-2026-75855?
Yes. A fix has been recorded for CVE-2026-75855. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-75855 affect?
CVE-2026-75855 affects ArcadeDB < 26.8.1, ArcadeDB server POST /api/v1/server endpoint. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-75855?
Upgrade to ArcadeDB 26.8.1; limit admin access and review filesystem permissions.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated admin can create or delete arbitrary files/dirs via ../ path traversal, causing data loss, config tampering, or potential further compromise.
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.