cvedb.io
CVE-2026-40518
HIGH · CVSS 7.1
EPSS exploitation probability: 0%
Published 2026-04-17T17:17:09.543 · Last modified 2026-06-17T10:45:24.717

Summary

ByteDance DeerFlow before commit 2176b2b contains a path traversal and arbitrary file write vulnerability in bootstrap-mode custom-agent creation where the agent name validation is bypassed. Attackers can supply traversal-style values or absolute paths as the agent name to influence directory creation and write files outside the intended custom-agent directory, potentially achieving arbitrary file write on the system subject to filesystem permissions.

Affected products

bytedance — deerflow

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.