CVE-2026-91198 (CVSS 5.3)

Description

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.

Is your site exposed to CVE-2026-91198?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS — Exploit Prediction

0.0024

Probability of exploitation

0.16%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-201 CWE-201

References

Other References

https://github.com/growthbook/growthbook https://github.com/growthbook/growthbook/blob/57d07471b137eb43d9bfb1613d0a1203d21fef88/packages/back-end/src/app.ts#L391-L409 https://github.com/growthbook/growthbook/blob/57d07471b137eb43d9bfb1613d0a1203d21fef88/packages/back-end/src/services/reports.ts#L880-L890 https://github.com/growthbook/growthbook/issues/6541 https://www.vulncheck.com/advisories/growthbook-through-5.0.1-information-disclosure-via-public-endpoints

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-91198? +

CVE-2026-91198 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0024, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-91198? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-27868

An attacker with access via network to the Regesta Smart HD-PLC of the provider Teldat (in this case, NO registration …

CVE-2025-24858

Develocity (formerly Gradle Enterprise) before 2024.3.1 allows an attacker who has network access to a Develocity server to obtain the …

CVE-2025-48045

An unauthenticated HTTP GET request to the /client.php endpoint will disclose the default administrator user credentials.

CVE-2024-7205

When the device is shared, the homepage module are before 2.19.0 in eWeLink Cloud Service allows Secondary user to take …

CVE-2025-8862

YugabyteDB has been collecting diagnostics information from YugabyteDB servers, which may include sensitive gflag configurations. To mitigate this, we recommend …

CVE-2025-64502

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. The MongoDB …

CVE-2026-91198