Vulnerability Details 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 traversal sequence in the filename.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 21.8%
CVSS Severity
CVSS v3 Score 6.5
Products affected by CVE-2026-7646
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cpe:2.3:a:langflow:langflow:1.0.0
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cpe:2.3:a:langflow:langflow:1.0.1
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cpe:2.3:a:langflow:langflow:1.0.10
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cpe:2.3:a:langflow:langflow:1.0.11
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cpe:2.3:a:langflow:langflow:1.0.12
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cpe:2.3:a:langflow:langflow:1.0.13
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cpe:2.3:a:langflow:langflow:1.0.14
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cpe:2.3:a:langflow:langflow:1.0.15
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cpe:2.3:a:langflow:langflow:1.0.16
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cpe:2.3:a:langflow:langflow:1.0.17
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cpe:2.3:a:langflow:langflow:1.0.18
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cpe:2.3:a:langflow:langflow:1.0.19
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cpe:2.3:a:langflow:langflow:1.0.2
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cpe:2.3:a:langflow:langflow:1.0.3
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cpe:2.3:a:langflow:langflow:1.0.4
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cpe:2.3:a:langflow:langflow:1.0.5
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cpe:2.3:a:langflow:langflow:1.0.6
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cpe:2.3:a:langflow:langflow:1.0.7
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cpe:2.3:a:langflow:langflow:1.0.8
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cpe:2.3:a:langflow:langflow:1.0.9
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cpe:2.3:a:langflow:langflow:1.1.0
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cpe:2.3:a:langflow:langflow:1.1.1
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cpe:2.3:a:langflow:langflow:1.1.2
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cpe:2.3:a:langflow:langflow:1.1.3
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cpe:2.3:a:langflow:langflow:1.1.4
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cpe:2.3:a:langflow:langflow:1.10.0
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cpe:2.3:a:langflow:langflow:1.10.1
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cpe:2.3:a:langflow:langflow:1.10.2
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cpe:2.3:a:langflow:langflow:1.2.0
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cpe:2.3:a:langflow:langflow:1.3.0
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cpe:2.3:a:langflow:langflow:1.3.1
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cpe:2.3:a:langflow:langflow:1.3.2
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cpe:2.3:a:langflow:langflow:1.3.3
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cpe:2.3:a:langflow:langflow:1.3.4
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cpe:2.3:a:langflow:langflow:1.4.0
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cpe:2.3:a:langflow:langflow:1.4.1
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cpe:2.3:a:langflow:langflow:1.4.2
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cpe:2.3:a:langflow:langflow:1.4.3
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cpe:2.3:a:langflow:langflow:1.5.0
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cpe:2.3:a:langflow:langflow:1.5.1
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cpe:2.3:a:langflow:langflow:1.6.0
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cpe:2.3:a:langflow:langflow:1.6.1
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cpe:2.3:a:langflow:langflow:1.6.10
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cpe:2.3:a:langflow:langflow:1.6.2
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cpe:2.3:a:langflow:langflow:1.6.3
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cpe:2.3:a:langflow:langflow:1.6.4
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cpe:2.3:a:langflow:langflow:1.6.5
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cpe:2.3:a:langflow:langflow:1.6.6
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cpe:2.3:a:langflow:langflow:1.6.7
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cpe:2.3:a:langflow:langflow:1.6.8
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cpe:2.3:a:langflow:langflow:1.6.9
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cpe:2.3:a:langflow:langflow:1.7.0
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cpe:2.3:a:langflow:langflow:1.7.1
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cpe:2.3:a:langflow:langflow:1.7.2
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cpe:2.3:a:langflow:langflow:1.7.3
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cpe:2.3:a:langflow:langflow:1.8.0
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cpe:2.3:a:langflow:langflow:1.8.1
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cpe:2.3:a:langflow:langflow:1.8.2
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cpe:2.3:a:langflow:langflow:1.8.3
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cpe:2.3:a:langflow:langflow:1.8.4
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cpe:2.3:a:langflow:langflow:1.9.0
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cpe:2.3:a:langflow:langflow:1.9.1
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cpe:2.3:a:langflow:langflow:1.9.2
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cpe:2.3:a:langflow:langflow:1.9.3
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cpe:2.3:a:langflow:langflow:1.9.4
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cpe:2.3:a:langflow:langflow:1.9.6