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CVE-2026-108600— open-multi-agent 1.5.0 through 1.21.2 Sandbox Escape via file_write Dangling Symlink

Quick assessment

Affected
open-multi-agent open-multi-agent
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

open-multi-agent (@open-multi-agent/core) 1.5.0 至 1.21.2 版本中存在一个链接跟踪漏洞，位于 file_write 工具沙箱内。攻击者可以利用悬空符号链接，在Workspace根目录之外创建文件。攻击者可以在工作区中植入一个悬空符号链接，并通过提示注入引导代理，将受攻击者控制的内容写入代理进程有权写入的任何位置。

CVSS 4.7 · Medium EPSS 0.15% · P4

Affected Version Matrix 1

VendorProduct Version RangeStatus
open-multi-agent open-multi-agent 1.5.0≤ 1.21.2 affected
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I. Basic Information for CVE-2026-108600

Vulnerability Information
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Vulnerability Title
open-multi-agent 1.5.0 through 1.21.2 Sandbox Escape via file_write Dangling Symlink
Source: CVE Program / CVE List V5
Vulnerability Description
open-multi-agent (@open-multi-agent/core) 1.5.0 through 1.21.2 contains a link following vulnerability in the file_write tool sandbox that allows attackers to create files outside the workspace root by using dangling symlinks. Attackers can plant a dangling symlink in the workspace and steer the agent via prompt injection to write attacker-influenced content anywhere the agent process can write.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
open-multi-agent open-multi-agent 1.5.0 ~ 1.21.2 -

II. Public POCs for CVE-2026-108600

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III. Intelligence Information for CVE-2026-108600

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Patches & Fixes for CVE-2026-108600 (2)

Vendor Advisories for CVE-2026-108600 (1)

Security Blog Posts for CVE-2026-108600 (1)

IV. Related Vulnerabilities

Same weakness: CWE-59

V. Comments for CVE-2026-108600

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