Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Deerflow | Deerflow | < 2026-03-29 |
Related Weaknesses (CWE)
References
- https://github.com/bytedance/deer-flow/commit/92c7a20cb74addc3038d2131da78f2e239Patch
- https://github.com/bytedance/deer-flow/pull/1547Issue TrackingPatchVendor Advisory
- https://www.vulncheck.com/advisories/bytedance-deerflow-localsandboxprovider-hosThird Party AdvisoryVDB Entry
FAQ
What is CVE-2026-34430?
CVE-2026-34430 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 reg...
How severe is CVE-2026-34430?
CVE-2026-34430 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-34430?
Check the references section above for vendor advisories and patch information. Affected products include: Deerflow Deerflow.