CVE-2026-67620

HIGHPre-NVD 7.77.7—
EchelonGraph scoreHIGH confidence

Score 7.7 from GitHub Security Advisory published 2026-08-08. the CNA's CVSS baseline 7.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this weekElevated
7.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.7Exploit: 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 server-side request forgery vulnerability in the SSRF guard implemented in httpSecurity.ts, where the DEFAULT_DENY_LIST omits the Oracle Cloud Infrastructure metadata endpoint 192.0.0.192 and the Alibaba Cloud metadata endpoint 100.100.100.200, allowing authenticated attackers to force the server to issue arbitrary GET requests to cloud instance metadata services. Attackers can send requests to the fetch-links API endpoint with a crafted URL parameter, bypassing deny-list validation including redirect-based bypasses, to reach instance metadata services and expose instance identity data and role credentials on Oracle Cloud Infrastructure or Alibaba Cloud deployments, with unauthenticated access possible when URL-fetching nodes exist in public chatflows.

CVSS v3
7.7
EG Score
7.7(high)
EG Risk
51(Track)
EG Risk 51/100SSVC: 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
Severity77% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

August 8, 2026

Last Modified

August 14, 2026

Advisory Details (3)

Auto-updated Aug 8, 2026
No patch confirmed yet.
generic

Flowise 3.1.4 SSRF via fetch-links Endpoint Incomplete Deny-List | Advisories | VulnCheck

https://www.vulncheck.com/advisories/flowise-ssrf-via-fetch-links-endpoint-incomplete-deny-list
generic

GitHub - abdugafforov-bobur/CVE-2026-67620-poc: CVE-2026-67620 - Flowise SSRF via incomplete cloud-metadata deny-list (Oracle OCI 192.0.0.192 + Alibaba 100.100.100.200 bypass the DEFAULT_DENY_LIST) · GitHub

https://github.com/abdugafforov-bobur/CVE-2026-67620-poc
generic

The Future of Flowise

https://flowiseai.com/sunset

Vendor Advisories for CVE-2026-67620(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 29× in last 7d / 58× 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 03:47 UTCEG score recompute
  2. 2026-08-21 03:47 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 16:48 UTCGHSA enrichment
  5. 2026-08-20 05:45 UTCGHSA enrichment
  6. 2026-08-19 18:46 UTCEG score recompute
  7. 2026-08-19 18:46 UTCGHSA enrichment
  8. 2026-08-19 17:04 UTCEPSS rescore
  9. 2026-08-19 07:15 UTCGHSA enrichment
  10. 2026-08-18 20:16 UTCEG score recompute
  11. 2026-08-18 20:16 UTCGHSA enrichment
  12. 2026-08-18 13:48 UTCEPSS rescore
  13. 2026-08-18 09:08 UTCGHSA enrichment
  14. 2026-08-17 22:08 UTCEG score recompute
  15. 2026-08-17 22:08 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 11:05 UTCGHSA enrichment
  18. 2026-08-17 00:06 UTCEG score recompute
  19. 2026-08-17 00:06 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 13:07 UTCEG score recompute
  22. 2026-08-16 13:07 UTCGHSA enrichment
  23. 2026-08-16 02:07 UTCGHSA enrichment
  24. 2026-08-15 15:09 UTCGHSA enrichment
  25. 2026-08-15 04:10 UTCEG score recompute
Show 33 more
  1. 2026-08-15 04:10 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 06:23 UTCEG score recompute
  6. 2026-08-14 06:23 UTCGHSA enrichment
  7. 2026-08-13 22:00 UTCEPSS rescore
  8. 2026-08-13 19:24 UTCGHSA enrichment
  9. 2026-08-13 08:23 UTCGHSA enrichment
  10. 2026-08-12 21:24 UTCEG score recompute
  11. 2026-08-12 21:24 UTCGHSA enrichment
  12. 2026-08-12 13:51 UTCEPSS rescore
  13. 2026-08-12 10:26 UTCGHSA enrichment
  14. 2026-08-11 23:27 UTCEG score recompute
  15. 2026-08-11 23:27 UTCGHSA enrichment
  16. 2026-08-11 12:28 UTCGHSA enrichment
  17. 2026-08-11 01:29 UTCEG score recompute
  18. 2026-08-11 01:29 UTCGHSA enrichment
  19. 2026-08-11 00:00 UTCEPSS rescore
  20. 2026-08-10 14:30 UTCEG score recompute
  21. 2026-08-10 14:30 UTCGHSA enrichment
  22. 2026-08-10 14:06 UTCEG score recompute
  23. 2026-08-10 14:06 UTCGHSA enrichment
  24. 2026-08-10 12:28 UTCGHSA enrichment
  25. 2026-08-10 01:18 UTCGHSA enrichment
  26. 2026-08-09 14:19 UTCEG score recompute
  27. 2026-08-09 14:19 UTCGHSA enrichment
  28. 2026-08-09 13:47 UTCEPSS rescore
  29. 2026-08-09 03:21 UTCEG score recompute
  30. 2026-08-09 03:21 UTCGHSA enrichment
  31. 2026-08-08 16:22 UTCEG score recompute
  32. 2026-08-08 16:07 UTCEG score recompute
  33. 2026-08-08 16:06 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-67620?
CVE-2026-67620 is a high vulnerability published on August 8, 2026. Flowise through 3.1.4 contains a server-side request forgery vulnerability in the SSRF guard implemented in httpSecurity.ts, where the DEFAULTDENYLIST omits the Oracle Cloud Infrastructure metadata endpoint 192.0.0.192 and the Alibaba Cloud metadata endpoint 100.100.100.200, allowing authenticated…
When was CVE-2026-67620 disclosed?
CVE-2026-67620 was first published in the National Vulnerability Database on August 8, 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-2026-67620 actively exploited?
CVE-2026-67620 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 64.2% of all scored CVEs.
What is the CVSS score of CVE-2026-67620?
CVE-2026-67620 has a CVSS v4.0 base score of 7.7 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-67620?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-67620, 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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