PT-2026-89610

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.11.5 Description A logic error in the static security scanner allows an attacker to bypass security checks by crafting an annotated class-body assignment. This technique uses alias tracking to resolve ...

CVE-2026-84889: Improper Limitation of a Pathname to a Restricted Directory

IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary code due to improper limitation of a pathname to a restricted directory...

PT-2026-89618

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.11.5 Description Improper access control allows a remote authenticated attacker to read arbitrary files from the system. Recommendations Update IBM Langflow OSS to a version later than 1.11.5...

PT-2026-89625

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.11.5 Description Remote attackers can execute arbitrary code on the host system due to code injection during graph construction. The issue occurs because the software accepts attacker-controlled node o...

PT-2026-89611

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.11.5 Description An authenticated attacker can execute arbitrary code because the security scanner uses an incomplete denylist. A denylist is a security mechanism that explicitly lists prohibited items...

Security Bulletin: Langflow is affected by improper authentication due to missing password verification in the password reset endpoint

Summary Langflow provides a password reset capability through its user management API. The password reset endpoint accepts a current password field in the request body but does not verify it against the stored credential before applying the password change, and enforces no password complexity...

Security Bulletin: Langflow is vulnerable to server-side request forgery due to missing egress validation on server-side URL fetches

Summary Langflow and its bundled connectors perform server-side HTTP requests using URLs supplied by authenticated users without consistently applying the platform's connector SSRF validation guard. The MCP server configuration URL field accepts any HTTP or HTTPS target including RFC 1918,...

Security Bulletin: A path traversal vulnerability in file handling components could allow an authenticated attacker to write files to arbitrary locations on the server filesystem

Summary A path traversal vulnerability existed in two independent file handling mechanisms used by the product's workflow execution and file management capabilities. The file upload endpoint accepted multipart filenames directly from HTTP request metadata without sanitization, allowing an...

CVE-2026-17627

IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote authenticated attacker to obtain sensitive information and inject messages into workflow history due to improper authorization...

CVE-2026-17631

IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote authenticated attacker to obtain sensitive information due to a server-side request forgery SSRF vulnerability...

CVE-2026-17622

IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote authenticated attacker to obtain sensitive information due to improper limitation of a pathname to a restricted directory...

CVE-2026-17621

IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot " sequences /.. / to view arbitrary files on the system...

CVE-2026-14470

IBM Langflow OSS 1.0.0 through 1.10.2 could allow an authenticated attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences /../ to view arbitrary files on the system...

CVE-2026-14470 Langflow OSS is affected by arbitrary file read due to path traversal vulnerabilities in file and knowledge base components

IBM Langflow OSS 1.0.0 through 1.10.2 could allow an authenticated attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences /../ to view arbitrary files on the system...

CVE-2026-14470

IBM Langflow OSS versions 1.0.0 through 1.10.2 is vulnerable to a path traversal flaw (CWE-22) in its file and knowledge base components. An authenticated attacker can send a crafted URL request containing ../ sequences to read arbitrary files on the system. Per the IBM security bulletin, in the ...

EUVD-2026-71491

IBM Langflow OSS 1.0.0 through 1.10.2 could allow an authenticated attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences /../ to view arbitrary files on the system...

CVE-2026-14470 Langflow OSS is affected by arbitrary file read due to path traversal vulnerabilities in file and knowledge base components

IBM Langflow OSS 1.0.0 through 1.10.2 could allow an authenticated attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences /../ to view arbitrary files on the system...

EUVD-2026-71466

IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote authenticated attacker to obtain sensitive information and inject messages into workflow history due to improper authorization...

CVE-2026-17621 Langflow OSS is affected by arbitrary file read due to path traversal vulnerabilities in file and knowledge base components

IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot " sequences /.. / to view arbitrary files on the system...

CVE-2026-17621

IBM Langflow OSS versions 1.0.0 through 1.10.2 are affected by a path traversal vulnerability (CWE-22) in its file and knowledge base components. The root cause involves user-supplied path values not being validated against /../ sequences in the Directory component, the Knowledge Base connector i...