EUVD-2026-53464

IBM Langflow OSS 1.0.0 through 1.10.3 allows users to read arbitrary files from the server filesystem, including other users' uploaded documents, the JWT signing secret, the SQLite database, and process environment variables, by sending a crafted MCP resources/read request with a URL-encoded path...

CVE-2026-7646 Langflow is affected by security vulnerabilities in Model Context Protocol features

IBM Langflow OSS 1.0.0 through 1.10.3 allows users to read arbitrary files from the server filesystem, including other users' uploaded documents, the JWT signing secret, the SQLite database, and process environment variables, by sending a crafted MCP resources/read request with a URL-encoded path...

CVE-2026-7646 Langflow is affected by security vulnerabilities in Model Context Protocol features

IBM Langflow OSS 1.0.0 through 1.10.3 allows users to read arbitrary files from the server filesystem, including other users' uploaded documents, the JWT signing secret, the SQLite database, and process environment variables, by sending a crafted MCP resources/read request with a URL-encoded path...

CVE-2026-7646

IBM Langflow OSS 1.0.0 through 1.10.3 allows users to read arbitrary files from the server filesystem, including other users' uploaded documents, the JWT signing secret, the SQLite database, and process environment variables, by sending a crafted MCP resources/read request with a URL-encoded path...

EUVD-2026-53463

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...

CVE-2026-9077

Summary of CVE-2026-9077 (IBM Langflow OSS) : Langflow OSS versions 1.0.0–1.10.3 allow remote authenticated attackers to bypass localhost-only restrictions and write arbitrary MCP server configurations to IDE configuration files on the host. The vulnerability stems from weaknesses in MCP command/...

CVE-2026-9077 Reliance on Untrusted Inputs in a Security Decision vulnerabilities in Model Context Protocol features

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...

CVE-2026-9077

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...

ROOT-APP-PYPI-CVE-2026-55255 CVE-2026-55255 in langflow - Patched by Root

Root has patched CVE-2026-55255 in the langflow package for Root:PyPI. Multiple fixed versions available...

CISA Flags Langflow RCE, Tomcat, and N-central Flaws as Actively Exploited

The U.S. Cybersecurity and Infrastructure Security Agency CISA, on August 5, 2026, added three flaws to its Known Exploited Vulnerabilities KEV catalog, citing evidence of active exploitation in the wild. The list of vulnerabilities is as follows - CVE-2026-9198 CVSS score: 9.8 - A code injection...

CVE-2026-8183: Improper Limitation of a Pathname to a Restricted Directory

IBM Langflow OSS 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, 1.0.0 through 1.10.3, and 1.0.0 through 1.10.3 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot "...

CVE-2026-7869: Improper Limitation of a Pathname to a Restricted Directory

IBM Langflow OSS 1.0.0 through 1.10.3 is vulnerable to Path Traversal in the Knowledge Bases API POST /api/v1/knowledgebases. This occurs because user-supplied knowledge base names are used directly to create file paths without proper sanitization or containment checks. An authenticated attacker...

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-2026-68304

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 unintended code during Agentic Assistant validation because the application improperly handles LLM-generated components. The system executes Pytho...

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...

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-2026-9201: Inadequate Encryption Strength

IBM Langflow OSS 1.0.0 through 1.10.3 could allow an authenticated attacker to execute arbitrary code due to a cryptographic weakness in the custom component validation mechanism. When the optional hardening mode that restricts execution to trusted component templates is enabled, the application...

CVE-2026-8182: Improper Control of Generation of Code

IBM Langflow OSS 1.0.0 through 1.10.3 installations allow anyone on the internet to execute arbitrary code on the server without any credentials via 2 HTTP requests...

PT-2026-68226

Name of the Vulnerable Software and Affected Versions IBM Langflow OSS versions 1.0.0 through 1.10.3 Description An authenticated attacker can read, modify, or expose sensitive host files through Docker-based MCP servers. This occurs because of incomplete filtering of dangerous Docker volume-moun...

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...