Investigate in your agent.

Turn this advisory into a focused investigation. Ask your agent to check your project’s versions, explain the evidence, and suggest a compatible fix.

Your agent needs remote MCP support and access to https://cve.new/mcp.

Read the setup guide

Skip to content
cve.new Create a CVE report
Check your stack
CVE-2026-118690critical9.8

Signal K Server before 2.33.0 Missing Authentication via /skServer/ziplogs

Impact

Signal K Server before version 2.33.0 has a missing authentication vulnerability, allowing unauthenticated remote attackers to download log archives and potentially gain full server control. The weakness is in the /skServer/ziplogs endpoint. Attackers can extract a secret key from the logs and forge administrator tokens.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

SignalK · VulnCheck

signalk-server

2 ranges
VulnCheck version evidence

Package identity

pkg:npm/signalk-serverExplore signalk-server →

Identity supplied by VulnCheck. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → before 2.33.0

semver versions

unaffected

2.33.0

semver versions

unknown

Other versions: unaffected

Original source description

Signal K Server before 2.33.0 contains a missing authentication vulnerability that allows unauthenticated remote attackers to download log archives via the /skServer/ziplogs endpoint. Attackers can extract the JWT secretKey from security.json in the ZIP, forge administrator tokens, and create persistent admin accounts for full server control.

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-118690

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-306 ↗

Missing Authentication for Critical Function

VulnCheck

Related →

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

VulnCheck · platform conditions

Any condition may hold

Vulnerable product

cpe:2.3:a:signalk:signal_k_server:*:*:*:*:*:*:*:*

Before: 2.33.0

Original applicability statements
[
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:signalk:signal_k_server:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "2.33.0"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 2
VulnCheck

Assigning organization

2026-10-28
CISA-ADP

Additional data publisher

2026-10-29

What changed

Follow changes
  1. CVE · CVE-2026-118690

    Observed 2026-10-29T17:51:50.757Z · upstream updated 2026-10-29T17:22:34.003Z

    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-29T15:48:44.982534Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "yes"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.

References

6 sources
github.com/SignalK/signalk-server/commit/728bab82742d16c54e50525b95dc9b6e32396107
patchVulnCheck
github.com/SignalK/signalk-server/security/advisories/GHSA-4w32-qx5g-cpwv
vendor-advisoryVulnCheck
github.com/SignalK/signalk-server
productVulnCheck
github.com/SignalK/signalk-server/blob/v2.32.0/src/interfaces/logfiles.js
technical-descriptionVulnCheck
github.com/SignalK/signalk-server/releases/tag/v2.33.0
release-notesVulnCheck
www.vulncheck.com/advisories/signal-k-server-before-2.33.0-missing-authentication-via-skserver-ziplogs
third-party-advisoryVulnCheck