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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-55168— Runtipi: Authenticated arbitrary file write via backup restore symlink planting

Quick assessment

Affected
runtipi runtipi
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.

Runtipi 是一个个人家庭服务器编排工具。在 4.10.0 及更早版本中，Runtipi 会接受由攻击者控制的备份存档中的符号链接（symlink），并在备份恢复流程期间将这些符号链接复制到实际的应用程序路径中。经过身份验证的攻击者可以将 植设为指向任意可达路径的符号链接，然后向 发起请求，并附带由攻击者控制的 内容。 函数会跟随该被植入的符号链接，从而允许以 Runtipi 进程权限将内容写入到预期的恢复目录和 目录边界之外。此问题已在 4.10.1 版本中修复。

CVSS 6.5 · Medium EPSS 0.45% · P37

Possible ATT&CK Techniques 1 AI

T1222.001 · Windows Permissions

Affected Version Matrix 1

VendorProduct Version RangeStatus
runtipi runtipi < 4.10.1 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-55168

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Runtipi: Authenticated arbitrary file write via backup restore symlink planting
Source: CVE Program / CVE List V5
Vulnerability Description
Runtipi is a personal homeserver orchestrator. In 4.10.0 and earlier, Runtipi accepts symbolic links from an attacker-controlled backup archive and copies them into live application paths during the backup restore flow. An authenticated attacker can plant user-config/app.env as a symlink to an arbitrary reachable path and then send PUT /api/user-config/demoapp3:_user with attacker-controlled appEnv content. FilesystemService.writeTextFile() follows the planted link, allowing content to be written outside the intended restore and user-config directory boundary with Runtipi process permissions. This issue is fixed in version 4.10.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
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
runtipi runtipi < 4.10.1 -

II. Public POCs for CVE-2026-55168

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-55168

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-55168 (2)

Vendor Advisories for CVE-2026-55168 (1)

Vendor Pages for CVE-2026-55168 (1)

IV. Related Vulnerabilities

Same product: runtipi
Same vendor: runtipi
Same weakness: CWE-59

V. Comments for CVE-2026-55168

No comments yet

Leave a comment