What is CVE-2023-49931?

CVE-2023-49931 is a critical-severity vulnerability in Couchbase Server, classified under Improper Access Control. CVSS score: 9.8/10. Published 2024-02-29.

How severe is CVE-2023-49931?

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

Vulnerability in Couchbase Server

CVE-2023-49931

An issue was discovered in Couchbase Server before 7.2.4. SQL++ cURL calls to /diag/eval are not sufficiently restricted.

Published 2024-02-29 · last modified 2026-06-17.

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 (59.0th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Couchbase Server

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

forums.couchbase.com/tags/security (Product, Issue Tracking)
docs.couchbase.com/server/current/release-notes/relnotes.html (Release Notes)
www.couchbase.com/alerts/ (Vendor Advisory)

Frequently asked questions

What is CVE-2023-49931?: CVE-2023-49931 is a critical-severity vulnerability in Couchbase Server, classified under Improper Access Control. CVSS score: 9.8/10. Published 2024-02-29.
How severe is CVE-2023-49931?: Critical severity. CVSS v3 base score is 9.8 out of 10.