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CVE-2026-108759— mistral.rs 0.9.0 through 0.9.4 Sandbox Escape via Symlink Following in mistralrs-code-exec

Quick assessment

Affected
EricLBuehler mistral.rs
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.

mistral.rs 0.9.0 至 0.9.4 版本在 mistralrs-code-exec 功能中存在一个链接跟随（link following）漏洞。该漏洞允许在沙箱中执行的 shell 代码通过符号链接（symlinks）读取和覆盖沙箱外部的文件。攻击者或经过提示注入的代理可以将符号链接命名为输出结果，或重用带有符号链接输入路径的会话，从而以服务器进程的身份访问文件。

CVSS 6.8 · Medium EPSS 0.32% · P23

Affected Version Matrix 1

VendorProduct Version RangeStatus
EricLBuehler mistral.rs 0.9.0≤ 0.9.4 affected
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I. Basic Information for CVE-2026-108759

Vulnerability Information
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Vulnerability Title
mistral.rs 0.9.0 through 0.9.4 Sandbox Escape via Symlink Following in mistralrs-code-exec
Source: CVE Program / CVE List V5
Vulnerability Description
mistral.rs 0.9.0 through 0.9.4 contains a link following vulnerability in mistralrs-code-exec that allows sandboxed shell code to read and overwrite files outside the sandbox via symlinks. Attackers or prompt-injected agents can name symlinks as outputs or reuse sessions with symlinked input paths to access files with the server process's permissions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/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
EricLBuehler mistral.rs 0.9.0 ~ 0.9.4 -

II. Public POCs for CVE-2026-108759

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-108759

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Patches & Fixes for CVE-2026-108759 (1)

Vendor Advisories for CVE-2026-108759 (1)

Security Blog Posts for CVE-2026-108759 (1)

IV. Related Vulnerabilities

Same product: mistral.rs
Same vendor: EricLBuehler
Same weakness: CWE-59

V. Comments for CVE-2026-108759

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