Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-w5r9-j49j-2m55
Advisory ID github_osv/GHSA-w5r9-j49j-2m55
Aliases
Summary Duplicate Advisory : Flowise has arbitrary file access due to missing chat flow id validation ### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-q67q-549q-p849. This link is maintained to preserve external references. ### Original 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.
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-73 External Control of File Name or Path
System Score Found at
cvssv3.1 9.8 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-w5r9-j49j-2m55/GHSA-w5r9-j49j-2m55.json
cvssv4 9.3 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-w5r9-j49j-2m55/GHSA-w5r9-j49j-2m55.json
generic_textual CRITICAL
Reference id Reference type URL
https://github.com/FlowiseAI/Flowise/commit/8bd3de41533de78e4ef6c980e5704a1f9cb7ae6f
https://github.com/FlowiseAI/Flowise/commit/c2b830f279e454e8b758da441016b2234f220ac7
CVE-2025-71334 https://nvd.nist.gov/vuln/detail/CVE-2025-71334
flowise-arbitrary-file-access-via-missing-chat-flow-id-validation Advisory https://www.vulncheck.com/advisories/flowise-arbitrary-file-access-via-missing-chat-flow-id-validation
GHSA-q67q-549q-p849 https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-q67q-549q-p849
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-w5r9-j49j-2m55/GHSA-w5r9-j49j-2m55.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-w5r9-j49j-2m55/GHSA-w5r9-j49j-2m55.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.