CVE-2026-7657: Server-Side Request Forgery (SSRF)

IBM Langflow OSS 1.0.0 through 1.10.3 Langflow could allow server-side request forgery SSRF due to incomplete and ineffective SSRF protection enforcement...

CVE-2026-9077: Reliance on Untrusted Inputs in a Security Decision

IBM Langflow OSS 1.0.0 through 1.10.3 Langflow allows remote authenticated attackers to bypass localhost-only restrictions and write arbitrary MCP server configurations to IDE configuration files on the host system...

PT-2026-68293

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description The software uses Python's non-cryptographic random module to generate Fernet encryption keys when user secrets are shorter than 32 characters. This process relies on the Mersenne...

CVE-2026-17626: Incorrect Privilege Assignment

IBM Langflow OSS 1.0.0 through 1.10.3 Langflow could allow an authenticated attacker to read, modify, or expose sensitive host files via Docker-based MCP servers due to incomplete filtering of dangerous Docker volume-mount and device-mapping arguments...

PT-2026-68300

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description A code injection flaw allows a remote authenticated attacker to execute arbitrary code. Recommendations Update IBM Langflow OSS to a version later than 1.10.3...

CVE-2026-10547: Improper Access Control

IBM Langflow OSS 1.0.0 through 1.10.3 does not properly validate ownership in the deprecated POST /api/v1/build/flowid/vertices endpoint, allowing an authenticated user to inject arbitrary graph data into a shared cache for any flow. This may result in cross-user cache pollution, unauthorized...

PT-2026-68305

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description An authenticated attacker can execute arbitrary code due to a cryptographic weakness in the custom component validation mechanism. When the optional hardening mode is enabled to restri...

CVE-2026-9205: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the ensurefernetkey function...

CVE-2026-17630: Incomplete List of Disallowed Inputs

IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote attacker to execute arbitrary code due to improper validation of configuration parameters...

PT-2026-68297

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS affected versions not specified Description An issue exists involving weak cryptographic key derivation within the ensure fernet key function. Key derivation is the process of deriving one or more secret keys from a master key...

PT-2026-68303

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description Remote attackers can execute arbitrary code on the server without authentication by sending two HTTP requests. Recommendations Update IBM Langflow OSS to a version later than 1.10.3...

PT-2026-68289

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description Incomplete and ineffective enforcement of protections allows for server-side request forgery SSRF, a condition where an attacker can induce the server to make requests to an unintended...

PT-2026-68290

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description Improper validation of the username field allows attackers to inject path traversal sequences—a technique used to access files and directories outside the intended folder—and bypass...

PT-2026-68257

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description A remote authenticated attacker can execute arbitrary commands due to improper neutralization of special elements used in an OS command. This issue occurs when the application fails to...

PT-2026-68291

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description An authenticated attacker can perform a Path Traversal attack via the Knowledge Bases API endpoint POST /api/v1/knowledge bases. This issue arises because the system uses user-supplied...

CVE-2026-17623: Improper Neutralization of Special Elements used in an OS Command

IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary commands due to improper validation of the command field in MCP server configurations...

CVE-2026-8446: Missing Authentication for Critical Function

IBM Langflow OSS 1.0.0 through 1.10.3 contain an authentication bypass vulnerability in the Model Context Protocol MCP composer endpoint when mcpcomposerenabled=true default and projects are configured with authtype=oauth...

CVE-2026-17632: Improper Control of Generation of Code

IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary code due to improper validation of Python code during AST-based security scanning...

CVE-2026-17633: Improper Control of Generation of Code

IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary code due to code injection...

PT-2026-68298

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description Improper validation of module imports allows a remote authenticated attacker to execute arbitrary code. Recommendations At the moment, there is no information about a newer version tha...