Dashboard / CVE-2026-34430

CVE-2026-34430

HIGH
MEDIUM Priority: 0.04 BB Relevance: 67/100
Published: 2026-04-01 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Active
S: X
AT: None
VC: High
VI: High
VA: High

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
deerflow deerflow < 2026-03-29

References & Advisories (3)

https://github.com/bytedance/deer-flow/pull/1547
Issue Tracking Patch Vendor Advisory

Bug Bounty Relevance

67 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

8.6 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.41%
Raw Score 0.004070
Percentile 34.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00407
2026-10-28
0.00400

Intelligence Sources

nvd ref →

External Links