What’s Vulnerable › Vulnerabilities

CVE-2026-115752: Signal K Server 2.28.0-beta.2 before 2.34.0 SSRF via App Store appIcon

• Severity: medium (CVSS 4.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-23 · updated 2026-10-29
• Weakness: CWE-918

Description

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.

Affected products

• Npm Signalk-Server: from 2.28.0-beta.2 before 2.34.0 — fixed in 2.34.0
• signalk-server: from 2.28.0-beta.2 before 2.34.0 — fixed in 2.34.0

How to fix

Upgrade to a fixed version: Npm Signalk-Server 2.34.0; signalk-server 2.34.0. Check the vendor advisory for mitigations.

References

• https://github.com/SignalK/signalk-server/commit/535104f655304c697d535252da397948e5101dc6
• https://github.com/SignalK/signalk-server/releases/tag/v2.34.0
• https://github.com/SignalK/signalk-server/security/advisories/GHSA-7wpf-ch8f-5f4x
• https://www.vulncheck.com/advisories/signal-k-server-2.28.0-beta.2-before-2.34.0-ssrf-via-app-store-appicon

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