Reference page — cumulative record through Thursday, August 20, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2025-71334

CVE-2025-71334CRITICAL

Flowise - Arbitrary File Access via Missing Chat Flow ID Validation

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   N   N   H   H   H    9.3   .0390   89.4     —

AFFECTED
  Product  Versions     Fixed
  Flowise  unspecified  3.0.6

TIMELINE
  Jun 20  Reserved by VulnCheck
  Jun 25  EXPLOIT PUBLISHED — CVE-2025-71334 (Flowise). Public exploit reference added.
  Jun 25  Published (CNA: VulnCheck)

CWE-73 · CNA: VulnCheck · CVSS v4.0 · 4 references · NVD status: Analyzed

Description

Flowise before 3.0.6 (affected versions 2.2.8 and earlier) contains an arbitrary file access vulnerability due to missing validation that the chatflowId and chatId parameters are UUIDs or numbers in file handling operations. By supplying a path-traversal value (e.g., '../../../../../tmp') as the chatflow id, an unauthenticated attacker can use the /api/v1/chatflows endpoint (via addBase64FilesToStorage) to write arbitrary files, and the /api/v1/get-upload-file and /api/v1/openai-assistants-file/download endpoints (via streamStorageFile) to read arbitrary files. Arbitrary file write may lead to remote code execution.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
June 20, 2026	Reserved	Reserved by VulnCheck
June 25, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2025-71334 (Flowise). Public exploit reference added.
June 25, 2026	Published	Published (CNA: VulnCheck)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Flowise	Flowise	—	—	3.0.6

Weaknesses

CWE-73

References (4)

https://github.com/FlowiseAI/Flowise/commit/8bd3de41533de78e4ef6c980e5704a1f9cb7ae6f [Patch]
https://github.com/FlowiseAI/Flowise/commit/c2b830f279e454e8b758da441016b2234f220ac7 [Patch]
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-q67q-549q-p849 [Exploit, Vendor Advisory]
https://www.vulncheck.com/advisories/flowise-arbitrary-file-access-via-missing-chat-flow-id-validation [Third Party Advisory]

Authoritative record: CVE-2025-71334 at cve.org

Vendors: flowise

Weaknesses: CWE-73

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-71334 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Thursday, August 20, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.