ByteDance DeerFlow LocalSandboxProvider Host Bash Escape_CVE-2026-34430

8.6 / 10

HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Description

ByteDance Deer-Flow versions prior to commit 92c7a20 contain a sandbox escape vulnerability in bash tool handling that allows attackers to execute arbitrary commands on the host system by bypassing regex-based validation using shell features such as directory changes and relative paths. Attackers can exploit the incomplete shell semantics modeling to read and modify files outside the sandbox boundary and achieve arbitrary command execution through subprocess invocation with shell interpretation enabled.

Basic Information

ID CVE-2026-34430

Source VulnCheck

Published Apr 1, 2026 at 13:34

Modified Apr 1, 2026 at 15:01

Affected Product

Vendor Bytedance Inc.

Product DeerFlow

Affected Versions Bytedance Inc. DeerFlow 0

CWE Classification

CWE-184

References

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    "published": "2026-04-01T13:34:17.014Z",
    "modified": "2026-04-01T15:01:25.156Z",
    "type": "cve",
    "title": "ByteDance DeerFlow LocalSandboxProvider Host Bash Escape",
    "source": "VulnCheck",
    "references": "https://github.com/bytedance/deer-flow/pull/1547\nhttps://github.com/bytedance/deer-flow/commit/92c7a20cb74addc3038d2131da78f2e239ef542e\nhttps://www.vulncheck.com/advisories/bytedance-deerflow-localsandboxprovider-host-bash-escape",
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