Vulnerability in Growthbook
CVE-2026-91198
GrowthBook through 5.0.1 returns unredacted fact table definitions including raw warehouse SQL in payloads served by unauthenticated public report and experiment endpoints. Attackers with knowledge of a publicly shared report or experiment identifier can read internal data warehouse query text, schema, table names, filter values and datasource identifiers.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (36.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- GitHub Issue #6541 (issue-tracking)
- github.com/growthbook/growthbook (product)
- github.com/growthbook/growthbook/blob/57d07471b137eb43d9bfb1613d0a1203d21fef88/… (technical-description)
- github.com/growthbook/growthbook/blob/57d07471b137eb43d9bfb1613d0a1203d21fef88/… (technical-description)
- VulnCheck Advisory: GrowthBook through 5.0.1 Information Disclosure via Public Endpoints (third-party-advisory)
Frequently asked questions
- What is CVE-2026-91198?
- CVE-2026-91198 is a medium-severity vulnerability in Growthbook, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 5.3/10. Published 2026-09-14.
- How severe is CVE-2026-91198?
- Medium severity. CVSS v3 base score is 5.3 out of 10.