S4E just found a high top 10 tcp port service scan
high·Product Based Web Vulnerabilities·Updated Jul 23, 2026

CVE-2026-31831 Scanner

CVE-2026-31831 Scanner - Path Traversal vulnerability in Tautulli

Est. Time~10 seconds
Scan TypeGroup Scan
Targetsdomain, subdomain, ipv4
CostFree
0
Times Used
by S4E users
0
Assets Scanned
domains & IPs
0
Vulnerabilities Found
confirmed findings
References
CVECVE-2026-31831
8.7
CVSShigh
Exploitable remotely over the internet · no authentication required.

Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to version 2.17.0, the /newsletter/image/images API endpoint is vulnerable to path traversal, allowing unauthenticated attackers to read arbitrary files from the application server's filesystem. This issue has been patched in version 2.17.0.

Attack Vector
Network
Privileges Req.
None
User Interaction
None
Affected
Tautulliby Tautulli
< 2.17.0
Updated Aug 19, 2026View on NVD →
Detail

Tautulli is a widely used monitoring and tracking tool designed for the Plex Media Server. It is primarily utilized by system administrators and Plex enthusiasts to monitor usage statistics, performance, and resource consumption within the server. This software allows users to keep track of which media is being played, gather information about the media server, and generate detailed reports. As an add-on to Plex, Tautulli provides a user-friendly interface to facilitate easy access to real-time data and historical logs, thereby enhancing media server management and control. Tautulli's community-driven development emphasizes continual improvement and additional features tailored to users' needs.

The Path Traversal vulnerability in Tautulli allows malicious actors to manipulate file paths using directory traversal sequences. This vulnerability can lead to unauthorized access to underlying server files, posing significant security risks. Specifically, this vulnerability is located in the `/newsletter/image/images` endpoint, where user-controlled path segments are not properly validated. Unauthenticated access could permit attackers to perform actions beyond the intended scope, such as reading sensitive configuration files without any prior authorization. Fixing this vulnerability is crucial to maintain data confidentiality and integrity.

Technically, this Path Traversal vulnerability is exploited through manipulation of the path parameter in HTTP requests. By appending specific traversal sequences to the endpoint URL, an attacker can bypass directory restrictions and access arbitrary files within the server's directory structure. The lack of containment validation permits the reading of sensitive files like "config/config.ini", which may contain crucial data like API keys and server tokens. The vulnerability persists in versions of Tautulli up to 2.16.1, while version 2.17.0 and later corrects the file access permissions, preventing such unauthorized access.

Exploitation of this vulnerability could lead to severe data breaches, exposing critical server configurations and authentication credentials. Attackers can gain access to confidential information, including API keys, hashed admin passwords, and JWT secrets, which may have broader implications for the affected systems. The leaked credentials could be utilized for further malicious activities, compromising server integrity and user privacy. Maintaining updated software and applying security patches is vital to prevent exploitation.

REFERENCES

Solution Advice
Remediation:
  • Update Tautulli to version 2.17.0 or later to remediate this vulnerability.
  • Implement strict file permission settings to restrict access to sensitive configuration files.
  • Utilize web application firewalls to monitor and block suspicious path traversal attempts.
  • Conduct regular security audits on your systems to identify potential vulnerabilities.
  • Ensure proper input validation and sanitization of user-controlled data in your applications.

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