CVE-2026-107449
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.
CVE-2026-107449
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-107449
Heimdall
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/linuxserver/Heimdall",
"vendor": "linuxserver",
"modules": [
"Enhanced app test/livestats (test_config",
"get_stats)"
],
"product": "Heimdall",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "2.8.3"
}
],
"programFiles": [
"app/SupportedApps.php",
"app/Http/Controllers/ItemController.php"
],
"defaultStatus": "unknown",
"programRoutines": [
{
"name": "SupportedApps::execute"
}
]
}
]- Related CVEs
- CVE-2026-107449
Source reference:
/cveMetadata/cveId
Publisher severity
low
Source reference: /containers/cna/metrics
- Event
- #13058 · Revision 1
- Added to Heist Feed
- Publisher date