CVE-2026-67621

HIGHPre-NVD 7.67.6—
EchelonGraph scoreHIGH confidence

Score 7.6 from GitHub Security Advisory (severity: HIGH) published 2026-08-07. the CNA's CVSS baseline 7.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this weekElevated
7.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.6Exploit: Elevated riskExposed: 0

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

Flowise through 3.1.4 contains a missing authorization vulnerability that allows authenticated workspace members to perform unauthorized document store operations by accessing unprotected mutation endpoints. Attackers holding only view-level permissions can send direct HTTP requests to the upsert and refresh document store routes to trigger document ingestion, refresh vector database contents, consume embedding API credits, and modify knowledge bases used by downstream chatflows.

CVSS v3
7.6
EG Score
7.6(high)
EG Risk
50(Track)
EG Risk 50/100SSVC: 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
Severity76% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

August 6, 2026

Last Modified

August 14, 2026

Advisory Details (2)

Auto-updated Aug 6, 2026
No patch confirmed yet.
generic

The Future of Flowise

https://flowiseai.com/sunset
generic

cve-advisories/2026/Flowise/CVE-2026-67621.md at main · Caycon/cve-advisories · GitHub

https://github.com/Caycon/cve-advisories/blob/main/2026/Flowise/CVE-2026-67621.md

Vendor Advisories for CVE-2026-67621(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 30× in last 7d / 64× 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. 2026-08-21 04:19 UTCEG score recompute
  2. 2026-08-21 04:19 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 17:14 UTCGHSA enrichment
  5. 2026-08-20 06:05 UTCGHSA enrichment
  6. 2026-08-19 19:00 UTCEG score recompute
  7. 2026-08-19 19:00 UTCGHSA enrichment
  8. 2026-08-19 17:04 UTCEPSS rescore
  9. 2026-08-19 07:53 UTCGHSA enrichment
  10. 2026-08-18 20:49 UTCEG score recompute
  11. 2026-08-18 20:49 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 09:45 UTCGHSA enrichment
  14. 2026-08-17 22:41 UTCEG score recompute
  15. 2026-08-17 22:41 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 11:36 UTCGHSA enrichment
  18. 2026-08-17 00:32 UTCEG score recompute
  19. 2026-08-17 00:32 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 13:27 UTCGHSA enrichment
  22. 2026-08-16 02:23 UTCEG score recompute
  23. 2026-08-16 02:23 UTCGHSA enrichment
  24. 2026-08-15 15:19 UTCGHSA enrichment
  25. 2026-08-15 04:15 UTCEG score recompute
Show 39 more
  1. 2026-08-15 04:15 UTCGHSA enrichment
  2. 2026-08-15 01:30 UTCEPSS rescore
  3. 2026-08-14 17:10 UTCEG score recompute
  4. 2026-08-14 17:10 UTCGHSA enrichment
  5. 2026-08-14 16:39 UTCGHSA enrichment
  6. 2026-08-14 05:35 UTCEG score recompute
  7. 2026-08-14 05:35 UTCGHSA enrichment
  8. 2026-08-13 22:00 UTCEPSS rescore
  9. 2026-08-13 18:30 UTCGHSA enrichment
  10. 2026-08-13 07:26 UTCGHSA enrichment
  11. 2026-08-12 20:21 UTCEG score recompute
  12. 2026-08-12 20:21 UTCGHSA enrichment
  13. 2026-08-12 13:51 UTCEPSS rescore
  14. 2026-08-12 09:15 UTCGHSA enrichment
  15. 2026-08-11 22:11 UTCEG score recompute
  16. 2026-08-11 22:11 UTCGHSA enrichment
  17. 2026-08-11 11:01 UTCEG score recompute
  18. 2026-08-11 11:01 UTCGHSA enrichment
  19. 2026-08-11 00:00 UTCEPSS rescore
  20. 2026-08-10 23:57 UTCGHSA enrichment
  21. 2026-08-10 12:52 UTCGHSA enrichment
  22. 2026-08-10 01:48 UTCGHSA enrichment
  23. 2026-08-09 14:44 UTCEG score recompute
  24. 2026-08-09 14:44 UTCGHSA enrichment
  25. 2026-08-09 13:47 UTCEPSS rescore
  26. 2026-08-09 03:40 UTCEG score recompute
  27. 2026-08-09 03:40 UTCGHSA enrichment
  28. 2026-08-08 16:37 UTCEPSS rescore
  29. 2026-08-08 16:36 UTCGHSA enrichment
  30. 2026-08-08 05:31 UTCGHSA enrichment
  31. 2026-08-07 18:27 UTCEG score recompute
  32. 2026-08-07 18:27 UTCGHSA enrichment
  33. 2026-08-07 17:27 UTCEG score recompute
  34. 2026-08-07 17:27 UTCGHSA enrichment
  35. 2026-08-07 09:42 UTCEG score recompute
  36. 2026-08-07 09:42 UTCGHSA enrichment
  37. 2026-08-06 22:38 UTCEG score recompute
  38. 2026-08-06 22:15 UTCEG score recompute
  39. 2026-08-06 22:15 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-67621?
CVE-2026-67621 is a high vulnerability published on August 6, 2026. Flowise through 3.1.4 contains a missing authorization vulnerability that allows authenticated workspace members to perform unauthorized document store operations by accessing unprotected mutation endpoints. Attackers holding only view-level permissions can send direct HTTP requests to the upsert…
When was CVE-2026-67621 disclosed?
CVE-2026-67621 was first published in the National Vulnerability Database on August 6, 2026, with the most recent update on August 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-67621 actively exploited?
CVE-2026-67621 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 80.1% of all scored CVEs.
What is the CVSS score of CVE-2026-67621?
CVE-2026-67621 has a CVSS v4.0 base score of 7.6 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-67621?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-67621, 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

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