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CVE mentions, exploit signals, and PoC evidence in one fast public view.

CVE detail

CVE-2026-58057

Flowise before 3.1.3 validates Custom MCP stdio environment variables against a denylist using a case-sensitive comparison, so on Windows, where environment names are case-insensitive, supplying 'node_options' bypasses the NODE_OPTIONS denylist entry. An authenticated user who can configure a Custom MCP node can thereby inject NODE_OPTIONS --require and execute arbitrary code in the Flowise server context.

CVSS 2.3 · LowBuzz score 38.91 public exploit repository references

Buzz score

Why this CVE is surfacing

Buzz score total 38.9

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 17.9 · diversity 16.5 · KEV 0.0 · OTX 0.0 · PoC 4.5
Mention score
17.9
5 evidence mentions in the snapshot
Diversity score
16.5
4 sources across 3 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
4.5
1 repos · best confidence 0.90
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
2
within the 30d window
Peak daily
1
highest bucket

Evidence

Source links by recency

Newest mentions first
5 source links · newest first

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

1 repository references · best confidence 0.90 · max 0 stars
  • bikini/exploitariumHigh confidence
    githubNVD Exploit reference0 starsDiscovered Jul 19, 2026, 6:20 AM

    NVD labels the source link as Exploit; this is not independent verification of the repository's code.

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