Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
Primary rating from Vendor (vulncheck) · only source for this CVE.
CVSS VectorVendor: vulncheck
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
Lifecycle Timeline
9DescriptionCVE.org
Langflow versions up to and including 1.6.9 contain a chained vulnerability that enables account takeover and remote code execution. An overly permissive CORS configuration (allow_origins='*' with allow_credentials=True) combined with a refresh token cookie configured as SameSite=None allows a malicious webpage to perform cross-origin requests that include credentials and successfully call the refresh endpoint. An attacker-controlled origin can therefore obtain fresh access_token / refresh_token pairs for a victim session. Obtained tokens permit access to authenticated endpoints - including built-in code-execution functionality - allowing the attacker to execute arbitrary code and achieve full system compromise.
AnalysisAI
Account takeover and remote code execution in Langflow AI workflow platform versions ≤1.6.9 due to a CORS misconfiguration (allow_origins='*' with credentials) and a SameSite=None refresh token cookie. An attacker controlling a malicious webpage can steal authentication tokens and gain full access, including built-in code execution, leading to complete system compromise. This vulnerability is confirmed actively exploited (CISA KEV), with publicly available exploit code and a high EPSS score (17.62%), indicating widespread attack likelihood.
Langflow before 1.3.0 allows unauthenticated remote code injection through the /api/v1/validate/code endpoint, enabling
Langflow has a third RCE vulnerability via exec_globals (EPSS 10.0%) allowing inclusion of untrusted code that executes
Code injection in Langflow CSV Agent node before 1.8.0. The node hardcodes allow_dangerous_code=True, enabling arbitrary
langflow <=1.0.18 is vulnerable to Remote Code Execution (RCE) as any component provided the code functionality and the
langflow v1.0.12 was discovered to contain a remote code execution (RCE) vulnerability via the PythonCodeTool component.
Langflow through 0.6.19 allows remote code execution if untrusted users are able to reach the "POST /api/v1/custom_compo
Langflow before 1.7.0.dev45 exposes multiple API endpoints without authentication, allowing unauthenticated access to us
Langflow versions prior to 1.0.13 suffer from a Privilege Escalation vulnerability, allowing a remote and low privileged
Langflow has a code injection vulnerability in the code component (EPSS 2.6%) enabling remote code execution through the
Langflow has an eval injection in eval_custom_component_code (EPSS 2.0%) enabling remote code execution through crafted
Remote code execution in IBM Langflow OSS 1.0.0 through 1.9.3 lets an unauthenticated attacker inject and run arbitrary
Unauthenticated remote code execution in IBM Langflow OSS versions 1.0.0 through 1.10.1 lets anonymous attackers run arb
Same weakness CWE-346 – Origin Validation Error
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External POC / Exploit Code
Leaving vuln.today
EUVD-2025-201507
GHSA-577h-p2hh-v4mv