CVE-2026-56273: medium-severity vulnerability in Flowise
Flowise - Path Traversal in Vector Store basePath Parameter
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.9epss 0.5%
Flowise before 3.1.0 contains a path traversal vulnerability in Faiss and SimpleStore vector store implementations that accept unsanitized basePath parameters from authenticated users. Attackers with valid API tokens can write vector store data to arbitrary filesystem locations, potentially enabling code execution or data exfiltration.
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:H/SA:N
Affected products
Flowise · FlowiseRelated CVEs — Flowise
In the same product, most dangerous first.
CVE-2026-56274HIGHFlowise - Remote Code Execution via MCP Security Bypass in validateCommandFlags and validateArgsForLocalFileAccessEPSS 7.5%CVE-2025-71334CRITICALFlowise - Arbitrary File Access via Missing Chat Flow ID ValidationEPSS 4.4%CVE-2026-56270HIGHFlowise - Unauthenticated OAuth Secrets Disclosure via /api/v1/loginmethod EndpointEPSS 2.0%CVE-2025-71324HIGHFlowise - Arbitrary File Read via chatId ParameterEPSS 1.6%CVE-2026-58057LOWFlowise - Custom MCP Environment Variable Denylist Bypass via Case SensitivityEPSS 1.6%CVE-2025-71338CRITICALFlowise through 2.2.7 - Arbitrary File Write to Remote Code Execution via document-store APIEPSS 1.2%