CVE-2026-107449

low

linuxserver Heimdall through 2.8.3 applies its SafeUrlFetcher SSRF protection mechanism only to ItemController; the enhanced-application test and live-stats re…

linuxserver Heimdall through 2.8.3 applies its SafeUrlFetcher SSRF protection mechanism only to ItemController; the enhanced-application test and live-stats requests occur via SupportedApps::execute(), a GuzzleHttp client that lacks IP address restrictions. In some realistic installations, the POST /test_config (and GET /get_stats) endpoints are accessible through CSRF, and thus an unauthenticated attacker can force the server to send requests to arbitrary internal hosts and ports (including 169.254.169.254) and read a status/port oracle in addition to partial response data.

CVSS

3.4

3.4 (CVSS v3.1)

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N

Severity source: NVD CVSS v3.1 (cve@mitre.org)

Timeline (UTC)

Published: 2026-10-08 05:17

Modified: 2026-10-08 21:35

NVD status: Deferred

Last synced 2 days ago

Verified against the source API 2026-10-27 06:58 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

Not reported by the source (unknown — not "none").

Weakness classification (CWE)

CWE-918

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://github.com/kashishtopi/heimdall-unauth-ssrf cve@mitre.org
https://github.com/linuxserver/Heimdall/blob/9ad5864a80d7025db1e6eab8eb2981c165b0ddff/app/... cve@mitre.org

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 06:58 UTC · record ↗

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