CVE-2026-34083

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Source
https://cve.org/CVERecord?id=CVE-2026-34083
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34083.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-34083
Aliases
Published
2026-04-02T16:14:38.893Z
Modified
2026-08-12T03:51:12.674166431Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
signalk-server: OAuth Authorization Code Theft via Unvalidated Host Header in OIDC Flow
Details

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 send the authorization code to whatever domain was injected. This issue has been patched in version 2.24.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-346",
        "CWE-601"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34083.json"
}
References

Affected packages

Git / github.com/signalk/signalk-server

Affected ranges

Type
GIT
Repo
https://github.com/signalk/signalk-server
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
494baed5751ab85fb81aad83927c559d4fdbb3ba
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.24.0"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE",
        "REFERENCES"
    ],
    "cpe": "cpe:2.3:a:signalk:signal_k_server:*:*:*:*:*:*:*:*"
}

Affected versions

0.*
0.1.1
0.1.10
0.1.11
0.1.12
0.1.19
0.1.2
0.1.3
0.1.4
0.1.5
0.1.6
0.1.7
0.1.8
0.1.9
Other
latest
v0.*
v0.1.24
v0.1.26
v0.1.27
v0.1.28
v0.1.29
v0.1.30
v0.1.33
v1.*
v1.0.0
v1.0.0-0
v1.0.0-1
v1.0.0-2
v1.0.0-3
v1.0.0-4
v1.1.0
v1.1.1
v1.1.2
v1.10.0
v1.10.1
v1.10.2
v1.12.0
v1.13.0
v1.13.1
v1.14.0
v1.15.0
v1.16.0
v1.17.0
v1.18.0
v1.19.0
v1.19.0-beta.2
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.2.4
v1.20.0
v1.21.0
v1.22.0
v1.23.0
v1.24.0
v1.25.0
v1.26.0
v1.27.0
v1.27.1
v1.28.0
v1.29.0
v1.3.0
v1.30.0
v1.31.0
v1.32.0
v1.32.0-beta.1
v1.32.0-beta.2
v1.32.0-beta.3
v1.33.0
v1.33.0-beta.1
v1.34.0
v1.35.0
v1.35.1
v1.35.2
v1.36.0
v1.36.0-beta.1
v1.36.0-beta.2
v1.36.0-beta.3
v1.37.0
v1.37.0-beta.1
v1.37.0-beta.3
v1.37.1
v1.37.2
v1.37.3
v1.37.4
v1.37.5
v1.37.6
v1.38.0
v1.38.1
v1.39.0
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.40.0
v1.41.0
v1.41.0-beta.1
v1.41.0-beta.2
v1.41.0-beta.3
v1.41.0-beta.4
v1.41.1
v1.41.2
v1.41.3
v1.42.0
v1.43.0
v1.44.0
v1.45.0
v1.46.0
v1.46.1
v1.46.2
v1.46.3
v1.5.0
v1.6.0
v1.7.0
v1.7.1
v1.8.0
v1.9.0
v1.9.1
v2.*
v2.0.0
v2.0.0-beta.10
v2.0.0-beta.11
v2.0.0-beta.12
v2.0.0-beta.2
v2.0.0-beta.3
v2.0.0-beta.4
v2.0.0-beta.5
v2.0.0-beta.6
v2.0.0-beta.7
v2.0.0-beta.8
v2.0.0-beta.9
v2.1.0
v2.1.1
v2.10.0
v2.11.0
v2.12.0
v2.13.0
v2.13.0-beta.0
v2.13.0-beta.1
v2.13.0-beta.2
v2.13.0-beta.3
v2.13.1
v2.13.2
v2.13.3
v2.13.4
v2.13.5
v2.14.0
v2.14.0-beta.0
v2.14.0-beta.1
v2.14.1
v2.14.2
v2.14.3
v2.14.4
v2.15.0
v2.15.0-beta.5
v2.15.0-beta.6
v2.15.1
v2.15.2
v2.15.3
v2.16.0
v2.17.0
v2.17.1
v2.17.2
v2.18.0
v2.19.0
v2.19.0-beta.1
v2.19.0-beta.2
v2.19.0-beta.3
v2.19.0-beta.4
v2.19.0-beta.5
v2.19.1
v2.2.0
v2.20.0
v2.20.0-beta.1
v2.20.1
v2.20.2
v2.20.3
v2.21.1
v2.21.3
v2.22.0
v2.22.1
v2.23.0
v2.23.0-beta.1
v2.23.0-beta.2
v2.24.0-beta.1
v2.24.0-beta.2
v2.24.0-beta.3
v2.24.0-beta.4
v2.3.0
v2.3.1
v2.4.1
v2.5.0
v2.6.0
v2.6.1
v2.6.2
v2.7.0
v2.7.1
v2.7.2
v2.8.0
v2.8.1
v2.8.2
v2.8.3
v2.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34083.json"