{"data":{"id":"b82f1aee-fb4f-4e74-952c-915970c2281a","title":"CVE-2026-8446: IBM Langflow OSS 1.0.0 through 1.10.3 contain an authentication bypass vulnerability in the Model Context Protocol (MCP)","summary":"IBM Langflow OSS versions 1.0.0 through 1.10.3 have an authentication bypass vulnerability in the Model Context Protocol (MCP, a system for connecting AI models to external tools) composer endpoint when certain settings are enabled. This means attackers could potentially access protected features without proper login credentials when mcp_composer_enabled is set to true and projects use oauth (a login method) for authentication.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-8446","publishedAt":"2026-08-05T17:16:55.983Z","cveId":"CVE-2026-8446","cweIds":["CWE-306"],"cvssScore":"7.5","cvssSeverity":"high","severity":"high","attackType":["other"],"issueType":"vulnerability","affectedPackages":null,"affectedVendors":["LangChain"],"affectedVendorsRaw":["IBM Langflow OSS"],"classifierModel":"claude-haiku-4-5-20251001","classifierPromptVersion":"v3","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","attackVector":"network","attackComplexity":"low","privilegesRequired":"none","userInteraction":"none","exploitMaturity":"unknown","epssScore":0,"patchAvailable":null,"disclosureDate":"2026-08-05T17:16:55.983Z","capecIds":["CAPEC-115"],"crossRefCount":0,"attackSophistication":"moderate","impactType":["confidentiality","integrity"],"aiComponentTargeted":"api","llmSpecific":false,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":null}}