CVE-2026-73486

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-13. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
8.8EG
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: 8.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Flowise before 3.1.3 contains a code injection vulnerability in the CSV Agent node's customReadCSV parameter that allows authenticated attackers to execute arbitrary Python code. The validator uses a static regex blocklist that can be bypassed through obfuscation techniques, enabling attackers to execute code in the unsandboxed pyodide environment with full system access.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
56
EG Risk 56/100CISA 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
Severity88% × 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
49th
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

August 13, 2026

Last Modified

September 3, 2026

Advisory Details (2)

Auto-updated Aug 13, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Flowise before 3.1.3 Code Injection via CSV Agent customReadCSV | Advisories | VulnCheck

https://www.vulncheck.com/advisories/flowise-before-code-injection-via-csv-agent-customreadcsv
github Patch Available🟡 PoC Available

CSV_Agent customReadCSV Code Injection Remote Code Execution Vulnerability · Advisory · FlowiseAI/Flowise · GitHub

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-4878-cqgq-j53v

Vendor Advisories for CVE-2026-73486(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 19× in last 7d / 97× 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.

Showing the most recent 100 of 274 total refreshes for this CVE.

  1. 2026-10-05 14:42 UTCEG score recompute
  2. 2026-10-05 14:42 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 22:25 UTCGHSA enrichment
  5. 2026-10-04 07:12 UTCGHSA enrichment
  6. 2026-10-03 19:53 UTCEG score recompute
  7. 2026-10-03 19:53 UTCGHSA enrichment
  8. 2026-10-03 14:26 UTCEPSS rescore
  9. 2026-10-02 19:25 UTCEG score recompute
  10. 2026-10-02 19:25 UTCGHSA enrichment
  11. 2026-10-02 08:06 UTCEG score recompute
  12. 2026-10-02 08:06 UTCGHSA enrichment
  13. 2026-10-01 19:50 UTCEPSS rescore
  14. 2026-10-01 09:10 UTCGHSA enrichment
  15. 2026-09-30 21:50 UTCEG score recompute
  16. 2026-09-30 21:50 UTCGHSA enrichment
  17. 2026-09-29 15:24 UTCEPSS rescore
  18. 2026-09-29 04:16 UTCEG score recompute
  19. 2026-09-29 04:16 UTCGHSA enrichment
  20. 2026-09-28 13:52 UTCEPSS rescore
  21. 2026-09-28 12:26 UTCGHSA enrichment
  22. 2026-09-28 01:06 UTCEG score recompute
  23. 2026-09-28 01:06 UTCGHSA enrichment
  24. 2026-09-27 13:48 UTCEPSS rescore
  25. 2026-09-27 09:49 UTCEG score recompute
Show 75 more
  1. 2026-09-27 09:49 UTCGHSA enrichment
  2. 2026-09-26 15:59 UTCEPSS rescore
  3. 2026-09-25 03:37 UTCEG score recompute
  4. 2026-09-25 03:37 UTCGHSA enrichment
  5. 2026-09-24 08:11 UTCGHSA enrichment
  6. 2026-09-23 20:52 UTCEG score recompute
  7. 2026-09-23 20:52 UTCGHSA enrichment
  8. 2026-09-23 17:54 UTCEPSS rescore
  9. 2026-09-23 08:22 UTCGHSA enrichment
  10. 2026-09-22 21:03 UTCEG score recompute
  11. 2026-09-22 21:03 UTCGHSA enrichment
  12. 2026-09-22 08:22 UTCEG score recompute
  13. 2026-09-22 08:22 UTCGHSA enrichment
  14. 2026-09-21 21:09 UTCEPSS rescore
  15. 2026-09-21 21:03 UTCGHSA enrichment
  16. 2026-09-21 09:43 UTCGHSA enrichment
  17. 2026-09-20 21:52 UTCEG score recompute
  18. 2026-09-20 21:52 UTCGHSA enrichment
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 10:31 UTCGHSA enrichment
  21. 2026-09-19 23:11 UTCEG score recompute
  22. 2026-09-19 23:11 UTCGHSA enrichment
  23. 2026-09-19 11:16 UTCGHSA enrichment
  24. 2026-09-18 23:10 UTCEG score recompute
  25. 2026-09-18 23:10 UTCGHSA enrichment
  26. 2026-09-18 19:28 UTCEPSS rescore
  27. 2026-09-18 11:51 UTCGHSA enrichment
  28. 2026-09-18 00:30 UTCEG score recompute
  29. 2026-09-18 00:30 UTCGHSA enrichment
  30. 2026-09-17 12:09 UTCGHSA enrichment
  31. 2026-09-17 00:13 UTCEG score recompute
  32. 2026-09-17 00:13 UTCGHSA enrichment
  33. 2026-09-16 14:08 UTCEPSS rescore
  34. 2026-09-16 12:29 UTCEG score recompute
  35. 2026-09-16 12:29 UTCGHSA enrichment
  36. 2026-09-16 05:15 UTCEPSS rescore
  37. 2026-09-16 01:10 UTCGHSA enrichment
  38. 2026-09-15 13:06 UTCEG score recompute
  39. 2026-09-15 13:06 UTCGHSA enrichment
  40. 2026-09-15 03:12 UTCEPSS rescore
  41. 2026-09-15 00:22 UTCGHSA enrichment
  42. 2026-09-14 11:38 UTCGHSA enrichment
  43. 2026-09-14 00:19 UTCEG score recompute
  44. 2026-09-14 00:19 UTCGHSA enrichment
  45. 2026-09-13 13:01 UTCGHSA enrichment
  46. 2026-09-13 01:43 UTCEG score recompute
  47. 2026-09-13 01:43 UTCGHSA enrichment
  48. 2026-09-12 15:02 UTCEPSS rescore
  49. 2026-09-12 14:24 UTCEG score recompute
  50. 2026-09-12 14:24 UTCGHSA enrichment
  51. 2026-09-12 03:05 UTCGHSA enrichment
  52. 2026-09-11 15:46 UTCEG score recompute
  53. 2026-09-11 15:46 UTCGHSA enrichment
  54. 2026-09-11 14:53 UTCEPSS rescore
  55. 2026-09-11 04:15 UTCGHSA enrichment
  56. 2026-09-10 16:56 UTCEG score recompute
  57. 2026-09-10 16:56 UTCGHSA enrichment
  58. 2026-09-10 09:35 UTCEPSS rescore
  59. 2026-09-10 05:06 UTCGHSA enrichment
  60. 2026-09-09 17:48 UTCGHSA enrichment
  61. 2026-09-09 05:07 UTCEG score recompute
  62. 2026-09-09 05:07 UTCGHSA enrichment
  63. 2026-09-08 22:01 UTCEPSS rescore
  64. 2026-09-08 04:09 UTCGHSA enrichment
  65. 2026-09-07 16:38 UTCEG score recompute
  66. 2026-09-07 16:38 UTCGHSA enrichment
  67. 2026-09-06 22:54 UTCEG score recompute
  68. 2026-09-06 22:54 UTCGHSA enrichment
  69. 2026-09-06 13:48 UTCEPSS rescore
  70. 2026-09-06 11:34 UTCGHSA enrichment
  71. 2026-09-06 00:14 UTCEG score recompute
  72. 2026-09-06 00:14 UTCGHSA enrichment
  73. 2026-09-05 12:53 UTCGHSA enrichment
  74. 2026-09-05 00:37 UTCEG score recompute
  75. 2026-09-05 00:37 UTCGHSA enrichment

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Frequently asked(5)

What is CVE-2026-73486?
CVE-2026-73486 is a high vulnerability published on August 13, 2026. Flowise before 3.1.3 contains a code injection vulnerability in the CSV Agent node's customReadCSV parameter that allows authenticated attackers to execute arbitrary Python code. The validator uses a static regex blocklist that can be bypassed through obfuscation techniques, enabling attackers to…
When was CVE-2026-73486 disclosed?
CVE-2026-73486 was first published on August 13, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73486 actively exploited?
CVE-2026-73486 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73486?
CVE-2026-73486 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-73486?
A fix for CVE-2026-73486 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73486 are linked in the Vendor Advisories panel on this page.

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