What is CVE-2026-75854?

CVE-2026-75854 is a critical-severity vulnerability in Arcadedata Arcadedb, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-08-18.

How severe is CVE-2026-75854?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Arcadedata Arcadedb

CVE-2026-75854

ArcadeDB versions before 26.8.1 contain a missing authentication vulnerability in the Redis wire-protocol plugin that allows unauthenticated attackers to read, write, and delete data. Attackers can connect to the Redis port and execute arbitrary commands against any database on the server without providing credentials, bypassing all security gates.

Vulnerability class: Broken Authentication

Published 2026-08-18 · last modified 2026-09-08.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (57.9th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.009 · change: -0.002

Affected products

Arcadedata Arcadedb

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

github.com/ArcadeData/arcadedb/security/advisories/GHSA-m46c-jh3x-xwrp (vendor-advisory)
www.vulncheck.com/advisories/arcadedb-redis-wire-protocol-plugin-missing-authen… (third-party-advisory)

Frequently asked questions

What is CVE-2026-75854?: CVE-2026-75854 is a critical-severity vulnerability in Arcadedata Arcadedb, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2026-08-18.
How severe is CVE-2026-75854?: Critical severity. CVSS v3 base score is 9.8 out of 10.