EUVD-2026-38202
GHSA-67qj-p3v2-73g7
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
Network-reachable path traversal requiring low-privilege auth; limited C/I/A impact with no scope change beyond the vulnerable system.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
Lifecycle Timeline
3DescriptionCVE.org
A vulnerability was determined in FlowiseAI Flowise up to 3.1.2. The impacted element is an unknown function of the file packages/components/nodes/documentloaders/S3/S3.ts of the component S3 Document Loader. Executing a manipulation can lead to path traversal. It is possible to launch the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.
AnalysisAI
Path traversal in FlowiseAI Flowise's S3 Document Loader component (packages/components/nodes/documentloaders/S3/S3.ts) enables authenticated remote attackers to manipulate S3 object key inputs to access files outside the intended storage scope. Versions 3.1.0 through 3.1.2 are confirmed affected. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid low-privilege authenticated session on the Flowise instance (PR:L per CVSS 4.0 vector) - unauthenticated exploitation is not supported by available data. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 base score of 2.1 reflects constrained real-world impact: the attack vector is network (AV:N) with low complexity (AC:L) and no attack prerequisites (AT:N), but requires low-privilege authentication (PR:L) and produces only limited confidentiality, integrity, and availability impact on the vulnerable system (VC:L/VI:L/VA:L) with no scope change to subsequent systems (SC:N/SI:N/SA:N). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated Flowise user with access to the workflow editor configures an S3 Document Loader node with a crafted object key containing path traversal sequences (e.g., ../../sensitive-prefix/credentials). When the workflow executes, the unsanitized key is processed by S3.ts, causing the loader to resolve and return content from unintended S3 paths. … |
| Remediation | No vendor-released patch has been identified at time of analysis - the vendor did not respond to responsible disclosure, and no fixed version is confirmed in available data. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-22 – Path Traversal
View allSame technique Path Traversal
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External POC / Exploit Code
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