CVE-2026-91198

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-09-15. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
5.3
EG Score
5.3(high)
EG Risk
39(Track)
EG Risk 39/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity53% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

September 14, 2026

Last Modified

September 16, 2026

Advisory Details (5)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

GrowthBook through 5.0.1 Information Disclosure via Public Endpoints | Advisories | VulnCheck

https://www.vulncheck.com/advisories/growthbook-through-5.0.1-information-disclosure-via-public-endpoints
generic

growthbook/packages/back-end/src/app.ts at 57d07471b137eb43d9bfb1613d0a1203d21fef88 · growthbook/growthbook · GitHub

https://github.com/growthbook/growthbook/blob/57d07471b137eb43d9bfb1613d0a1203d21fef88/packages/back-end/src/app.ts#L391-L409
generic

growthbook/packages/back-end/src/services/reports.ts at 57d07471b137eb43d9bfb1613d0a1203d21fef88 · growthbook/growthbook · GitHub

https://github.com/growthbook/growthbook/blob/57d07471b137eb43d9bfb1613d0a1203d21fef88/packages/back-end/src/services/reports.ts#L880-L890
generic

GitHub - growthbook/growthbook: Open Source Feature Flags, Experimentation, and Product Analytics · GitHub

https://github.com/growthbook/growthbook
generic

unauthenticated warehouse-SQL disclosure via public-shared reports (fact tables not redacted) · Issue #6541 · growthbook/growthbook · GitHub

https://github.com/growthbook/growthbook/issues/6541

Vendor Advisories for CVE-2026-91198(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 17× in last 7d / 17× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-18 21:36 UTCEG score recompute
  2. 2026-09-18 21:36 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-17 20:47 UTCEG score recompute
  5. 2026-09-17 20:47 UTCGHSA enrichment
  6. 2026-09-17 19:32 UTCEPSS rescore
  7. 2026-09-16 19:58 UTCEG score recompute
  8. 2026-09-16 19:58 UTCGHSA enrichment
  9. 2026-09-16 14:09 UTCEPSS rescore
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-15 19:38 UTCEG score recompute
  12. 2026-09-15 19:38 UTCGHSA enrichment
  13. 2026-09-15 19:14 UTCEG score recompute
  14. 2026-09-15 19:14 UTCGHSA enrichment
  15. 2026-09-14 23:22 UTCEG score recompute
  16. 2026-09-14 22:24 UTCEG score recompute
  17. 2026-09-14 22:24 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-91198?
CVE-2026-91198 is a medium vulnerability published on September 14, 2026. 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,…
When was CVE-2026-91198 disclosed?
CVE-2026-91198 was first published in the National Vulnerability Database on September 14, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-91198 actively exploited?
CVE-2026-91198 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 84.1% of all scored CVEs.
What is the CVSS score of CVE-2026-91198?
CVE-2026-91198 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-91198?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-91198, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-91198

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