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# tldr-a-byte-sized-daily-tech-newsletter → langflow → security-patch

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+ path-traversal (1) + vulnerability (1) + exploit (1)

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Path traversal flaw in AI dev platform Langflow exploited in attacks

Attackers are exploiting CVE-2026-5027, a path traversal bug in Langflow’s file upload API, to write arbitrary files on exposed servers without authentication. The flaw, caused by unsanitized filenames, was patched in langflow-base 0.8.3 and Langflow 1.9.0 (upgrade to 1.10.0).
Last saved Jun 18, 2026 · 2 min read
langflow + path-traversal + vulnerability + exploit security-patch tldr-a-byte-sized-daily-tech-newsletter