SignalK signalk-server up to 2.33.x App Store Icon Fetcher server-side request forgery

Summaryinfo

A vulnerability categorized as critical has been discovered in SignalK signalk-server up to 2.33.x. Impacted is an unknown function of the component App Store Icon Fetcher. Such manipulation leads to server-side request forgery. This vulnerability is traded as CVE-2026-115752. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in SignalK signalk-server up to 2.33.x and classified as critical. Affected by this issue is an unknown functionality of the component App Store Icon Fetcher. The manipulation with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Signal K Server from 2.28.0-beta.2 before 2.34.0 contains a server-side request forgery vulnerability in the App Store icon fetcher that trusts absolute signalk.appIcon URLs. Attackers publishing npm packages with Signal K keywords can make servers request loopback, vessel network, or cloud metadata endpoints, storing image-typed responses served back via the admin UI.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2026-115752 since 10/23/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading to version 2.34.0 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

• SignalK

Name

• signalk-server

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14
• 2.15
• 2.16
• 2.17
• 2.18
• 2.19
• 2.20
• 2.21
• 2.22
• 2.23
• 2.24
• 2.25
• 2.26
• 2.27
• 2.28
• 2.29
• 2.30
• 2.31
• 2.32
• 2.33

Website

• Product: https://github.com/SignalK/signalk-server/

CPE 2.3info

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CPE 2.2info

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