PT-2026-89614

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.11.5 Description Remote authenticated attackers can execute arbitrary commands due to improper validation of command-line arguments within the MCP stdio server configuration. Recommendations Update IBM...

CVE-2026-81941: Improper Access Control

IBM Langflow OSS 1.0.0 through 1.11.5 allows an authenticated non-administrative user could execute arbitrary operating system commands on the server at the privilege level of the application process by constructing a flow with an MCP Tools component configured to use a local stdio subprocess...

CVE-2026-81268: Insufficient Session Expiration

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute flows and obtain sensitive information due to insufficient session expiration of API keys after user deactivation...

CVE-2026-85025: Incorrect Authorization

IBM Langflow OSS 1.0.0 through 1.11.5 Langflow could allow an unauthenticated attacker to execute arbitrary code and access or modify chat sessions through publicly shared MCP project endpoints due to improper enforcement of public-flow security restrictions and session isolation controls...

CVE-2026-79742: Improper Control of Generation of Code

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary code due to an incomplete environment variable blocklist...

PT-2026-89619

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.11.5 Description A remote authenticated attacker can execute arbitrary code because of an incomplete environment variable blocklist. A blocklist is a security mechanism that prevents the use of specifi...

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-2026-78569: Improper Neutralization of Special Elements used in an OS Command

IBM Langflow OSS 1.0.0 through 1.11.5 could allow an authenticated attacker to execute arbitrary code due to an incomplete denylist in the security scanner...

PT-2026-89612

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.11.5 Description A remote authenticated attacker can execute arbitrary code because of an unguarded eval function call that processes input controlled by the attacker. Recommendations Update IBM Langfl...

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...

PT-2026-89631

🚨 CVE-2026-81268 IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute flows and obtain sensitive information due to insufficient session expiration of API keys after user deactivation. 🎖@cveNotify...

PT-2026-89645

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 code because the software does not properly limit a pathname to a restricted directory, leading to a path traversal condition...

CVE-2026-81204: Improper Control of Generation of Code

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction...

CVE-2026-78575: Improper Neutralization of Special Elements used in an OS Command

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary commands due to improper validation of command-line arguments in the MCP stdio server configuration...

CVE-2026-9225: Authorization Bypass Through User-Controlled Key

IBM Langflow OSS 1.0.0 through 1.11.5 Langflow could allow an authenticated attacker to access sensitive files belonging to other users due to improper access control in the File/Read File component. When executing flows through the /api/v1/run/advanced/flowid endpoint, the application allows...

CVE-2026-81211: Missing Authorization

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary Python code due to improper authorization of custom components in stored flows...

CVE-2026-78571: Improper Control of Generation of Code

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary code due to an unguarded eval call on attacker-controlled input...

CVE-2026-76059: Protection Mechanism Failure

IBM Langflow OSS 1.0.0 through 1.11.5 An attacker who could submit custom component source code could bypass the static security scanner by crafting an annotated class-body assignment that resolved to a dangerous callable through alias tracking; the resolved value was never checked against the...

CVE-2026-81940: Improper Control of Generation of Code

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote authenticated attacker to execute arbitrary code due to improper neutralization of special characters in flow display names...

PT-2026-89617

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.11.5 Description An unauthenticated remote attacker can execute arbitrary OS commands on a Langflow instance by sending a crafted HTTP request. This occurs because the application fails to properly...