Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-54574— `proot-distro install` has a Symlink Escape (Arbitrary Host File Write) via Malicious Tar Archive

Quick assessment

Affected
termux proot-distro
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Termux PRoot-Distro是Termux组织开源的一个管理 Linux 发行版的虚拟化工具。 Termux PRoot-Distro 5.1.5之前版本存在后置链接漏洞，该漏洞源于在提取tar包时未验证归档控制的符号链接目标，允许恶意归档在主机文件系统上创建绝对路径符号链接并写入文件。

CVSS 8.2 · High EPSS 0.19% · P7

Possible ATT&CK Techniques 1 AI

T1406.002

Affected Version Matrix 1

VendorProduct Version RangeStatus
termux proot-distro < 5.1.5 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-54574

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
`proot-distro install` has a Symlink Escape (Arbitrary Host File Write) via Malicious Tar Archive
Source: CVE Program / CVE List V5
Vulnerability Description
proot-distro is a utility for managing proot containers. Prior to version 5.1.5, proot-distro install extracted plain tarball root filesystems through _extract_plain_tar() in proot_distro/commands/install.py and Docker layers through _apply_layer() in proot_distro/helpers/docker.py without validating archive-controlled symlink targets in member.linkname, allowing a malicious archive to plant an absolute host-path symlink and write files through it onto the host filesystem. This issue is fixed in version 5.1.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-61
Source: CVE Program / CVE List V5
Vulnerability Title
Termux PRoot-Distro 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Termux PRoot-Distro是Termux组织开源的一个管理 Linux 发行版的虚拟化工具。 Termux PRoot-Distro 5.1.5之前版本存在后置链接漏洞，该漏洞源于在提取tar包时未验证归档控制的符号链接目标，允许恶意归档在主机文件系统上创建绝对路径符号链接并写入文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
termux proot-distro < 5.1.5 -

II. Public POCs for CVE-2026-54574

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8394 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-54574

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-54574 (1)

Vendor Advisories for CVE-2026-54574 (1)

Vendor Pages for CVE-2026-54574 (1)

IV. Related Vulnerabilities

Same product: proot-distro
Same vendor: termux
Same weakness: CWE-61

V. Comments for CVE-2026-54574

No comments yet

Leave a comment