Is CVE-2026-115752 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-115752 being exploited in the wild.

How severe is CVE-2026-115752?

Medium severity, with a CVSS score of 4.2, published 23 October 2026.

Which products and versions are affected?

signalk-server (npm) SEMVER:introduced=2.28.0-beta.2,fixed=2.34.0; Signal K Server 2.28.0-beta.2 to 2.33.x.

How is CVE-2026-115752 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-115752?

Check whether you run signalk-server (npm) or Signal K Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-115752: Signal K Server SSRF in App Store icon fetcher

CVE-2026-115752 · Severity: medium · CVSS 4.2 · Published 2026-10-23

Signal K Server is an open-source marine navigation application that manages vessel network data. The App Store icon fetcher in versions 2.28.0-beta.2 through 2.33.x allows attackers to make servers fetch images from arbitrary URLs, including loopback and cloud metadata endpoints, by publishing malicious npm packages. An attacker can retrieve sensitive information from internal networks or cloud environments and serve it back through the admin UI.

Technologies: signalk-server (npm), Signal K Server. Vendors: npm, Signal K.

Quick answers

Is CVE-2026-115752 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-115752 being exploited in the wild.
How severe is CVE-2026-115752?: Medium severity, with a CVSS score of 4.2, published 23 October 2026.
Which products and versions are affected?: signalk-server (npm) SEMVER:introduced=2.28.0-beta.2,fixed=2.34.0; Signal K Server 2.28.0-beta.2 to 2.33.x.
Is there a fix for CVE-2026-115752?: Yes. signalk-server (npm): upgrade to 2.34.0 or later. Until then: Restrict icon fetches to the official CDN (unpkg.com) and ignore absolute appIcon URLs in both remote and installed plugins, falling back to generated monogram icons instead. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-115752 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-115752?: Check whether you run signalk-server (npm) or Signal K Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

signalk-server (npm): upgrade to 2.34.0 or later
```
npm install signalk-server@2.34.0
```

Restrict icon fetches to the official CDN (unpkg.com) and ignore absolute appIcon URLs in both remote and installed plugins, falling back to generated monogram icons instead.

Technical details

The vulnerability is a server-side request forgery (SSRF) in the App Store icon fetcher that fails to validate signalk.appIcon URLs in plugin package.json manifests. The flaw allows absolute URLs to be passed through to the icon probe and App Store listing, enabling an attacker who publishes an npm package with Signal K keywords to redirect the server to loopback, vessel network, or cloud metadata endpoints. The fetched image-typed responses are stored and displayed in the admin UI, enabling data exfiltration.

Affected products

Signal K Server 2.28.0-beta.2 to 2.33.x

Identifiers

CVE-2026-115752
GHSA-7wpf-ch8f-5f4x

Timeline

2026-10-23: disclosed
2026-10-18: patched: Fix merged in v2.34.0 release

References

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