CVE-2026-58057

Katalog CVE

CVSS 5.0 · Medium EPSS 1,6%

Kerentanan Improper Handling of Case Sensitivity pada flowiseai flowise. Skor CVSS 3.1 5.0 (Medium) menurut vulncheck.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

28 Juni 2026

Terakhir diubah

6 Juli 2026

Status NVD

Analyzed

CVSS 3.1

5.0 (Medium), sumber vulncheck.com
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-178: Improper Handling of Case Sensitivity

EPSS (30 hari)

1,6% peluang dieksploitasi; lebih tinggi dari 74,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/FlowiseAI/Flowise/pull/6471 issue tracking · patch
• https://www.vulncheck.com/advisories/flowise-custom-mcp-environment-variable-denylist-bypass-via-case-sensitiv... exploit · patch · advisory pihak ketiga
• https://github.com/bikini/exploitarium/tree/main/flowise-mcp-env-case-bypass-poc exploit · advisory pihak ketiga