HighCVENVD — high/critical CVEs (rolling 7d)· 17 Apr 2026

CVE-2026-40518 — ByteDance DeerFlow before commit 2176b2b contains a path traversal and arbitrar…

Severity: High · Kind: Vulnerability

Plain-English summary on the way

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From the source

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.

Vulnerability facts

CVE
CVE-2026-40518
CVSS
7.1

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Plain-English summaries are AI-generated and reviewed for tone, not technical accuracy. For incident response, always rely on the original source linked above.