CVE-2026-55168

Published: Ago 21, 2026 Last Modified: Ago 21, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: high
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: high

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0045
Percentile
0,4th
Updated

Single Data Point

Only one EPSS measurement is available for this CVE. Trend analysis requires multiple data points over time.

59

Improper Link Resolution Before File Access ('Link Following')

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Integrity Access Control Other
Potential Impacts:
Read Files Or Directories Modify Files Or Directories Bypass Protection Mechanism Execute Unauthorized Code Or Commands
Applicable Platforms
Operating Systems: Windows, Unix
Likelihood of Exploit: Medium
View CWE Details
61

UNIX Symbolic Link (Symlink) Following

Incomplete
Abstraction: Compound Structure: Composite
Common Consequences
Security Scopes Affected:
Confidentiality Integrity
Potential Impacts:
Read Files Or Directories Modify Files Or Directories
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: High
View CWE Details
https://github.com/runtipi/runtipi/commit/df529a211b05f3a00…
https://github.com/runtipi/runtipi/commit/df529a211b05f3a0007b209b6c337f8c19426…
https://github.com/runtipi/runtipi/pull/2606
https://github.com/runtipi/runtipi/pull/2606
https://github.com/runtipi/runtipi/releases/tag/v4.10.1
https://github.com/runtipi/runtipi/releases/tag/v4.10.1
https://github.com/runtipi/runtipi/security/advisories/GHSA…
https://github.com/runtipi/runtipi/security/advisories/GHSA-wcrf-g9p9-2wg7