CVE-2026-91932

HIGHPre-NVD 8.58.5—
EchelonGraph scoreHIGH confidence

Score 8.5 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-15. A secondary CVSS source baseline 8.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 8.5Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Flowise before 3.1.4 contains a validation bypass vulnerability in MCP server configuration allowing authenticated attackers remote code execution through an unvalidated cwd parameter. Attackers can bypass path validation using clean filenames in the args array while controlling the working directory to execute malicious code.

CVSS v3
8.5
EG Score
8.5HIGHhigh confidence
EG Risk
54
EG Risk 54/100CISA SSVC

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
Severity85% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.7%
EPSS %ILE
52nd
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 15, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 15, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Flowise before 3.1.4 Remote Code Execution via cwd Parameter | Advisories | VulnCheck

https://www.vulncheck.com/advisories/flowise-before-3.1.4-remote-code-execution-via-cwd-parameter
github Patch Available🟡 PoC Available

Flowise MCP Server Config cwd Parameter Validation Bypass · Advisory · FlowiseAI/Flowise · GitHub

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-x7x8-95gh-42xm

Vendor Advisories for CVE-2026-91932(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 26× in last 7d / 77× 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. 2026-10-05 01:08 UTCEG score recompute
  2. 2026-10-05 01:08 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 12:14 UTCGHSA enrichment
  5. 2026-10-03 23:31 UTCEG score recompute
  6. 2026-10-03 23:31 UTCGHSA enrichment
  7. 2026-10-03 10:43 UTCGHSA enrichment
  8. 2026-10-02 21:59 UTCEG score recompute
  9. 2026-10-02 21:59 UTCGHSA enrichment
  10. 2026-10-02 09:16 UTCGHSA enrichment
  11. 2026-10-01 20:33 UTCEG score recompute
  12. 2026-10-01 20:33 UTCGHSA enrichment
  13. 2026-10-01 19:51 UTCEPSS rescore
  14. 2026-10-01 07:35 UTCGHSA enrichment
  15. 2026-09-30 18:52 UTCEG score recompute
  16. 2026-09-30 18:52 UTCGHSA enrichment
  17. 2026-09-30 15:04 UTCEPSS rescore
  18. 2026-09-30 05:41 UTCGHSA enrichment
  19. 2026-09-29 16:56 UTCEG score recompute
  20. 2026-09-29 16:55 UTCGHSA enrichment
  21. 2026-09-29 03:40 UTCEG score recompute
  22. 2026-09-29 03:39 UTCGHSA enrichment
  23. 2026-09-28 14:53 UTCEG score recompute
  24. 2026-09-28 14:53 UTCGHSA enrichment
  25. 2026-09-28 13:52 UTCEPSS rescore
Show 52 more
  1. 2026-09-28 13:52 UTCEPSS rescore
  2. 2026-09-28 02:09 UTCEG score recompute
  3. 2026-09-28 02:09 UTCGHSA enrichment
  4. 2026-09-27 13:49 UTCEPSS rescore
  5. 2026-09-27 13:23 UTCGHSA enrichment
  6. 2026-09-27 00:39 UTCEG score recompute
  7. 2026-09-27 00:39 UTCGHSA enrichment
  8. 2026-09-26 15:59 UTCEPSS rescore
  9. 2026-09-26 11:56 UTCEG score recompute
  10. 2026-09-26 11:55 UTCGHSA enrichment
  11. 2026-09-25 23:08 UTCGHSA enrichment
  12. 2026-09-25 10:24 UTCGHSA enrichment
  13. 2026-09-24 21:40 UTCEG score recompute
  14. 2026-09-24 21:40 UTCGHSA enrichment
  15. 2026-09-24 14:04 UTCEPSS rescore
  16. 2026-09-24 08:04 UTCGHSA enrichment
  17. 2026-09-23 19:21 UTCEG score recompute
  18. 2026-09-23 19:20 UTCGHSA enrichment
  19. 2026-09-23 17:54 UTCEPSS rescore
  20. 2026-09-23 05:52 UTCGHSA enrichment
  21. 2026-09-22 17:08 UTCEG score recompute
  22. 2026-09-22 17:08 UTCGHSA enrichment
  23. 2026-09-22 16:01 UTCEPSS rescore
  24. 2026-09-22 04:23 UTCEG score recompute
  25. 2026-09-22 04:23 UTCGHSA enrichment
  26. 2026-09-21 21:09 UTCEPSS rescore
  27. 2026-09-21 15:40 UTCGHSA enrichment
  28. 2026-09-21 02:57 UTCEG score recompute
  29. 2026-09-21 02:57 UTCGHSA enrichment
  30. 2026-09-20 20:16 UTCEPSS rescore
  31. 2026-09-20 14:13 UTCGHSA enrichment
  32. 2026-09-20 01:30 UTCEG score recompute
  33. 2026-09-20 01:30 UTCGHSA enrichment
  34. 2026-09-19 12:46 UTCGHSA enrichment
  35. 2026-09-19 00:03 UTCEG score recompute
  36. 2026-09-19 00:03 UTCGHSA enrichment
  37. 2026-09-18 19:28 UTCEPSS rescore
  38. 2026-09-18 11:19 UTCGHSA enrichment
  39. 2026-09-17 22:36 UTCEG score recompute
  40. 2026-09-17 22:36 UTCGHSA enrichment
  41. 2026-09-17 19:32 UTCEPSS rescore
  42. 2026-09-17 09:51 UTCGHSA enrichment
  43. 2026-09-16 21:07 UTCGHSA enrichment
  44. 2026-09-16 18:59 UTCEG score recompute
  45. 2026-09-16 18:59 UTCGHSA enrichment
  46. 2026-09-16 14:09 UTCEPSS rescore
  47. 2026-09-16 06:15 UTCEG score recompute
  48. 2026-09-16 06:15 UTCGHSA enrichment
  49. 2026-09-15 17:32 UTCEG score recompute
  50. 2026-09-15 16:18 UTCEG score recompute
  51. 2026-09-15 15:24 UTCEG score recompute
  52. 2026-09-15 15:22 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-91932?
CVE-2026-91932 is a high vulnerability published on September 15, 2026. Flowise before 3.1.4 contains a validation bypass vulnerability in MCP server configuration allowing authenticated attackers remote code execution through an unvalidated cwd parameter. Attackers can bypass path validation using clean filenames in the args array while controlling the working…
When was CVE-2026-91932 disclosed?
CVE-2026-91932 was first published on September 15, 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-2026-91932 actively exploited?
CVE-2026-91932 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (52nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-91932?
CVE-2026-91932 has a CVSS base score of 8.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-91932?
A fix for CVE-2026-91932 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-91932 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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