aleksey-hoffman Sigma File Manager up to 2.2.0 URL Validation security.rs validate_remote_url server-side request forgery

Summaryinfo

A vulnerability, which was classified as problematic, was found in aleksey-hoffman Sigma File Manager up to 2.2.0. This issue affects the function validate_remote_url of the file security.rs of the component URL Validation. The manipulation results in server-side request forgery. This vulnerability is reported as CVE-2026-111936. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, was found in aleksey-hoffman Sigma File Manager up to 2.2.0. Affected is the function validate_remote_url of the file security.rs of the component URL Validation. The manipulation with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality. CVE summarizes:

Sigma File Manager through 2.2.0 contains a server-side request forgery vulnerability because validate_remote_url() in security.rs never checks resolved IP addresses for extension download commands. A malicious extension or catalog entry can use hostnames resolving to loopback, private, or cloud metadata addresses to read internal responses via files written to the extension directory.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-111936 since 10/17/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/19/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• aleksey-hoffman

Name

• Sigma File Manager

Version

• 2.0
• 2.1
• 2.2.0

CPE 2.3info

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CPE 2.2info

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