CVE-2026-91929

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-09-15. a secondary CVSS source baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

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

Flowise versions before 3.1.4 contain cross-tenant authorization gaps in Enterprise endpoints that fail to verify resource ownership before operations. Attackers with Enterprise access can delete arbitrary workspaces, invite themselves into other organizations, modify cross-org roles, and abuse stored SSO secrets.

CVSS v3
7.1
EG Score
7.1(high)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

September 15, 2026

Last Modified

September 23, 2026

Advisory Details (2)

Auto-updated Sep 15, 2026
Patch available. Sources: github.
generic

Flowise before 3.1.4 Cross-Tenant Authorization Bypass | Advisories | VulnCheck

https://www.vulncheck.com/advisories/flowise-before-3.1.4-cross-tenant-authorization-bypass
github Patch Available

Cross-tenant/cross-org authorization gaps in Enterprise role, and SSO-config endpoints · Advisory · FlowiseAI/Flowise · GitHub

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-7x8x-vv46-4579

Vendor Advisories for CVE-2026-91929(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 28× in last 7d / 42× 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. 2026-09-25 04:18 UTCGHSA enrichment
  2. 2026-09-24 16:42 UTCEG score recompute
  3. 2026-09-24 16:42 UTCGHSA enrichment
  4. 2026-09-24 14:04 UTCEPSS rescore
  5. 2026-09-24 04:58 UTCEG score recompute
  6. 2026-09-24 04:58 UTCGHSA enrichment
  7. 2026-09-23 17:54 UTCEPSS rescore
  8. 2026-09-23 17:21 UTCGHSA enrichment
  9. 2026-09-23 10:26 UTCGHSA enrichment
  10. 2026-09-22 22:49 UTCEG score recompute
  11. 2026-09-22 22:49 UTCGHSA enrichment
  12. 2026-09-22 16:01 UTCEPSS rescore
  13. 2026-09-22 11:13 UTCGHSA enrichment
  14. 2026-09-21 23:37 UTCEG score recompute
  15. 2026-09-21 23:37 UTCGHSA enrichment
  16. 2026-09-21 21:09 UTCEPSS rescore
  17. 2026-09-21 12:01 UTCGHSA enrichment
  18. 2026-09-21 00:25 UTCEG score recompute
  19. 2026-09-21 00:25 UTCGHSA enrichment
  20. 2026-09-20 20:16 UTCEPSS rescore
  21. 2026-09-20 12:49 UTCGHSA enrichment
  22. 2026-09-20 01:13 UTCEG score recompute
  23. 2026-09-20 01:13 UTCGHSA enrichment
  24. 2026-09-19 13:37 UTCGHSA enrichment
  25. 2026-09-19 02:01 UTCEG score recompute
Show 17 more
  1. 2026-09-19 02:01 UTCGHSA enrichment
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 14:24 UTCGHSA enrichment
  4. 2026-09-18 02:48 UTCEG score recompute
  5. 2026-09-18 02:48 UTCGHSA enrichment
  6. 2026-09-17 19:32 UTCEPSS rescore
  7. 2026-09-17 15:12 UTCGHSA enrichment
  8. 2026-09-17 03:36 UTCGHSA enrichment
  9. 2026-09-16 15:59 UTCEG score recompute
  10. 2026-09-16 15:59 UTCGHSA enrichment
  11. 2026-09-16 14:09 UTCEPSS rescore
  12. 2026-09-16 04:23 UTCEG score recompute
  13. 2026-09-16 04:23 UTCGHSA enrichment
  14. 2026-09-15 16:33 UTCEG score recompute
  15. 2026-09-15 15:48 UTCEG score recompute
  16. 2026-09-15 15:24 UTCEG score recompute
  17. 2026-09-15 15:22 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-91929?
CVE-2026-91929 is a high vulnerability published on September 15, 2026. Flowise versions before 3.1.4 contain cross-tenant authorization gaps in Enterprise endpoints that fail to verify resource ownership before operations. Attackers with Enterprise access can delete arbitrary workspaces, invite themselves into other organizations, modify cross-org roles, and abuse…
When was CVE-2026-91929 disclosed?
CVE-2026-91929 was first published in the National Vulnerability Database on September 15, 2026, with the most recent update on September 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-91929 actively exploited?
CVE-2026-91929 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 73.9% of all scored CVEs.
What is the CVSS score of CVE-2026-91929?
CVE-2026-91929 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-91929?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-91929, 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-2026-91929

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