CVE-2026-34430

HIGH

8.8

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.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published4/1/2026

Last Modified4/2/2026

Sourcenvd

Honeypot Sightings0

Affected Products

deerflow:deerflow

Weaknesses (CWE)

CWE-184

References

https://github.com/bytedance/deer-flow/commit/92c7a20cb74addc3038d2131da78f2e239ef542e(disclosure@vulncheck.com)

https://github.com/bytedance/deer-flow/pull/1547(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/bytedance-deerflow-localsandboxprovider-host-bash-escape(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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