CVE-2026-73486

CRITICALPre-NVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 74% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this weekElevated
9.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.0Exploit: Elevated riskExposed: 0

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

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
9.0
EG Score
9.0(medium)
EG Risk
57(Track*)
EG Risk 57/100SSVC: 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
Severity90% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

August 13, 2026

Last Modified

August 13, 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 59× in last 7d / 72× 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 05:55 UTCGHSA enrichment
  2. 2026-08-21 02:01 UTCEG score recompute
  3. 2026-08-21 02:01 UTCGHSA enrichment
  4. 2026-08-20 22:56 UTCEPSS rescore
  5. 2026-08-20 22:06 UTCGHSA enrichment
  6. 2026-08-20 18:10 UTCGHSA enrichment
  7. 2026-08-20 14:16 UTCGHSA enrichment
  8. 2026-08-20 10:13 UTCGHSA enrichment
  9. 2026-08-20 06:19 UTCGHSA enrichment
  10. 2026-08-20 02:25 UTCGHSA enrichment
  11. 2026-08-19 22:30 UTCGHSA enrichment
  12. 2026-08-19 18:35 UTCEG score recompute
  13. 2026-08-19 18:35 UTCGHSA enrichment
  14. 2026-08-19 17:04 UTCEPSS rescore
  15. 2026-08-19 14:39 UTCGHSA enrichment
  16. 2026-08-19 10:44 UTCGHSA enrichment
  17. 2026-08-19 06:50 UTCGHSA enrichment
  18. 2026-08-19 02:56 UTCGHSA enrichment
  19. 2026-08-18 23:01 UTCGHSA enrichment
  20. 2026-08-18 19:07 UTCGHSA enrichment
  21. 2026-08-18 15:12 UTCEG score recompute
  22. 2026-08-18 15:12 UTCGHSA enrichment
  23. 2026-08-18 13:49 UTCEPSS rescore
  24. 2026-08-18 13:49 UTCEPSS rescore
  25. 2026-08-18 10:52 UTCGHSA enrichment
Show 47 more
  1. 2026-08-18 06:57 UTCGHSA enrichment
  2. 2026-08-18 03:03 UTCGHSA enrichment
  3. 2026-08-17 23:08 UTCGHSA enrichment
  4. 2026-08-17 19:13 UTCGHSA enrichment
  5. 2026-08-17 15:18 UTCEG score recompute
  6. 2026-08-17 15:18 UTCGHSA enrichment
  7. 2026-08-17 13:47 UTCEPSS rescore
  8. 2026-08-17 11:24 UTCGHSA enrichment
  9. 2026-08-17 07:29 UTCGHSA enrichment
  10. 2026-08-17 03:35 UTCGHSA enrichment
  11. 2026-08-16 23:41 UTCGHSA enrichment
  12. 2026-08-16 19:47 UTCGHSA enrichment
  13. 2026-08-16 15:52 UTCEG score recompute
  14. 2026-08-16 15:52 UTCGHSA enrichment
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 11:57 UTCGHSA enrichment
  18. 2026-08-16 08:03 UTCGHSA enrichment
  19. 2026-08-16 04:09 UTCEG score recompute
  20. 2026-08-16 04:09 UTCGHSA enrichment
  21. 2026-08-16 02:15 UTCEPSS rescore
  22. 2026-08-16 00:15 UTCGHSA enrichment
  23. 2026-08-15 20:21 UTCGHSA enrichment
  24. 2026-08-15 16:27 UTCGHSA enrichment
  25. 2026-08-15 12:33 UTCGHSA enrichment
  26. 2026-08-15 08:39 UTCGHSA enrichment
  27. 2026-08-15 04:45 UTCEG score recompute
  28. 2026-08-15 04:45 UTCGHSA enrichment
  29. 2026-08-15 01:31 UTCEPSS rescore
  30. 2026-08-15 00:51 UTCGHSA enrichment
  31. 2026-08-14 20:57 UTCGHSA enrichment
  32. 2026-08-14 17:03 UTCGHSA enrichment
  33. 2026-08-14 13:09 UTCGHSA enrichment
  34. 2026-08-14 09:15 UTCGHSA enrichment
  35. 2026-08-14 05:21 UTCGHSA enrichment
  36. 2026-08-14 01:26 UTCGHSA enrichment
  37. 2026-08-13 21:32 UTCGHSA enrichment
  38. 2026-08-13 17:38 UTCEG score recompute
  39. 2026-08-13 17:38 UTCGHSA enrichment
  40. 2026-08-13 13:35 UTCEG score recompute
  41. 2026-08-13 13:35 UTCGHSA enrichment
  42. 2026-08-13 13:18 UTCEG score recompute
  43. 2026-08-13 13:18 UTCGHSA enrichment
  44. 2026-08-13 12:34 UTCEG score recompute
  45. 2026-08-13 12:34 UTCGHSA enrichment
  46. 2026-08-13 11:42 UTCEG score recompute
  47. 2026-08-13 11:41 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-73486?
CVE-2026-73486 is a critical 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 in the National Vulnerability Database on August 13, 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% probability of exploitation in the next 30 days, which ranks it in the top 74.2% of all scored CVEs.
What is the CVSS score of CVE-2026-73486?
CVE-2026-73486 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2026-73486?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73486, 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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