CVEvulnerability
CVE-2026-34430
8.6 HIGH
Official page ↗
- Status
- Undergoing Analysis
- Published
- 2026-04-01
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 8.6 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 9.6 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-184
Description
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.
Affected configurations
• deerflow deerflow (< 2026-03-29)
Related
Weakness · CWE (1)
- CWE-184 Incomplete List of Disallowed Inputs weakness
References
- 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