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High severity7.1NVD Advisory· Published Apr 17, 2026· Updated Jun 5, 2026

CVE-2026-40518

CVE-2026-40518

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Bytedance/Deerflowreferences3 versions
    (expand)+ 2 more
    • (no CPE)
    • cpe:2.3:a:bytedance:deerflow:2.0-m0:*:*:*:*:*:*:*
    • (no CPE)range: <2176b2b

Patches

Vulnerability mechanics

References

3

News mentions

0

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