Bug 2547776 (CVE-2026-107449) - CVE-2026-107449 heimdall: heimdall: Information disclosure via server-side request forgery
Summary: CVE-2026-107449 heimdall: heimdall: Information disclosure via server-side re...
Keywords:
Status: NEW
Alias: CVE-2026-107449
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2547793
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-08 04:51 UTC by OSIDB Bzimport
Modified: 2026-10-08 06:48 UTC (History)
0 users

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Description OSIDB Bzimport 2026-10-08 04:51:24 UTC 
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.
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