🛡️ CVE-2026-34430 — deerflow

🟠 CVSS 8.8 — High ✅ No Known Exploit CWE-184 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

CVE-2026-34430 is recorded against 1 package.

  • deerflow (fixed in 2026-03-29)

Timeline and source

Published on 1 April 2026 and last revised on 14 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com
www.vulncheck.com

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE CWE-184
Public Exploit ✅ No
Source NVD
Published 2026-04-01
Updated 2026-08-11
Modified 2026-07-14

Affected Packages

Software From version Fixed in
deerflow — 2026-03-29

Similar Threats

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