thecfu scraparr up to 3.0.1 /metrics alias information disclosure

Summaryinfo

A vulnerability labeled as problematic has been found in thecfu scraparr up to 3.0.1. This vulnerability affects unknown code of the file /metrics. The manipulation of the argument alias results in information disclosure. This vulnerability is known as CVE-2026-26069. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in thecfu scraparr up to 3.0.1. Affected is an unknown part of the file /metrics. The manipulation of the argument alias with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:

Scraparr is a Prometheus Exporter for various components of the *arr Suite. From 3.0.0-beta to before 3.0.2, when the Readarr integration was enabled, the exporter exposed the configured Readarr API key as the alias metric label value. Users were affected only if all of the following conditions are met, Readarr scraping feature was enabled and no alias configured, the exporter’s /metrics endpoint was accessible to external or unauthorized users, and the Readarr instance is externally accessible. If the /metrics endpoint was publicly accessible, the Readarr API key could have been disclosed via exported metrics data. This vulnerability is fixed in 3.0.2.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-26069 since 02/10/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Upgrading to version 3.0.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 194116bb8fb0b6ea26421b3e7a7b326973f56cd0 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• thecfu

Name

• scraparr

Version

• 3.0.0
• 3.0.1

License

• open-source

Website

• Product: https://github.com/thecfu/scraparr/

CPE 2.3info

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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