Auth bypass in Metabase
CVE-2026-86116
Metabase versions before 0.63.1 fail to enforce data analyst permission checks on glossary API endpoints, allowing any authenticated user to create, modify, and delete glossary entries. Attackers can submit requests to POST, PUT, and DELETE glossary endpoints to tamper with instance-wide business glossary data without proper authorization.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.004 (35.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.002
Affected products
Weakness classification (CWE)
References
- github.com/geo-chen/oss/blob/main/metabase.md (technical-description)
- github.com/metabase/metabase (product)
- github.com/metabase/metabase/blob/v0.62.1/src/metabase/glossary/api.clj (technical-description)
- github.com/metabase/metabase/commit/0a0589299cfd (patch)
- github.com/metabase/metabase/releases/tag/v0.63.1 (release-notes)
- www.vulncheck.com/advisories/metabase-before-0.63.1-missing-function-level-auth… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-86116?
- CVE-2026-86116 is a medium-severity vulnerability in Metabase, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-09-05.
- How severe is CVE-2026-86116?
- Medium severity. CVSS v3 base score is 6.5 out of 10.