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CVE-2026-34083

Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0, SignalK Server contains a code-level vulnerability in its OIDC login and logout handlers where the unvalidated HTTP Host header is used to construct the OAuth2 redirect_uri. Because the redirectUri configuration is silently unset by default, an attacker can spoof the Host header to steal OAuth authorization codes and hijack user sessions in realistic deployments as The OIDC provider will then s
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8eac76dda8f4ba378f7ce5811792c63f5ae30ec6e052a7b72cc889af3acebcf4
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-346","description":"CWE-346: Origin Validation Error","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:52db83b2d165c4ee437bc4962355a8ef035088cec799e345340d8ae47d2ed05d · sha256:d3370966a02400c3… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-601","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:52db83b2d165c4ee437bc4962355a8ef035088cec799e345340d8ae47d2ed05d · sha256:d3370966a02400c3… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"signalk-server","vendor":"SignalK","versions":[{"status":"affected","version":"< 2.24.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:52db83b2d165c4ee437bc4962355a8ef035088cec799e345340d8ae47d2ed05d · sha256:d3370966a02400c3… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:52db83b2d165c4ee437bc4962355a8ef035088cec799e345340d8ae47d2ed05d · sha256:d3370966a02400c3… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-346","description":"CWE-346: Origin Validation Error","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:52db83b2d165c4ee437bc4962355a8ef035088cec799e345340d8ae47d2ed05d · sha256:d3370966a02400c3… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-601","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:52db83b2d165c4ee437bc4962355a8ef035088cec799e345340d8ae47d2ed05d · sha256:d3370966a02400c3… · /containers/cna/problemTypes/1/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/SignalK/signalk-server/releases/tag/v2.24.0","tags":["x_refsource_MISC"],"url":"https://github.com/SignalK/signalk-server/releases/tag/v2.24.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:52db83b2d165c4ee437bc4962355a8ef035088cec799e345340d8ae47d2ed05d · sha256:d3370966a02400c3… · /containers/cna/references/1
{"name":"https://github.com/SignalK/signalk-server/security/advisories/GHSA-cxj8-ggf2-p57c","tags":["x_refsource_CONFIRM"],"url":"https://github.com/SignalK/signalk-server/security/advisories/GHSA-cxj8-ggf2-p57c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:52db83b2d165c4ee437bc4962355a8ef035088cec799e345340d8ae47d2ed05d · sha256:d3370966a02400c3… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/SignalK/signalk-server/security/advisories/GHSA-cxj8-ggf2-p57c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:52db83b2d165c4ee437bc4962355a8ef035088cec799e345340d8ae47d2ed05d · sha256:d3370966a02400c3… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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