CVE-2026-34430

ByteDance DeerFlow 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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/bytedance/deer-flow/commit/92c7a20cb74addc3038d2131da78f2e239ef542e	Patch
https://github.com/bytedance/deer-flow/pull/1547	Issue Tracking Patch Vendor Advisory
https://www.vulncheck.com/advisories/bytedance-deerflow-localsandboxprovider-host-bash-escape	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

cpe:2.3:a:deerflow:deerflow:*:*:*:*:*:*:*:*

History

26 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) Las versiones de ByteDance Deer-Flow anteriores al commit 92c7a20 contienen una vulnerabilidad de escape de sandbox en el manejo de herramientas bash que permite a los atacantes ejecutar comandos arbitrarios en el sistema anfitrión evadiendo la validación basada en expresiones regulares utilizando características de shell como cambios de directorio y rutas relativas. Los atacantes pueden explotar el modelado incompleto de la semántica del shell para leer y modificar archivos fuera del límite del sandbox y lograr la ejecución arbitraria de comandos a través de la invocación de subprocesos con la interpretación de shell habilitada.

Information

Published : 2026-04-01 14:16

Updated : 2026-10-26 22:10

NVD link : CVE-2026-34430

Mitre link : CVE-2026-34430

CVE.ORG link : CVE-2026-34430

JSON object : View

Products Affected

deerflow

deerflow

CWE

CWE-184

Incomplete List of Disallowed Inputs

NVD-CWE-noinfo

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