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Vulnerabilites related to linuxserver - docker-heimdall

CVE-2025-50578 (GCVE-0-2025-50578)

Vulnerability from cvelistv5

Published

2025-07-30 00:00

Modified

2025-07-30 15:43

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

Summary

LinuxServer.io heimdall 2.6.3-ls307 contains a vulnerability in how it handles user-supplied HTTP headers, specifically `X-Forwarded-Host` and `Referer`. An unauthenticated remote attacker can manipulate these headers to perform Host Header Injection and Open Redirect attacks. This allows the loading of external resources from attacker-controlled domains and unintended redirection of users, potentially enabling phishing, UI redress, and session theft. The vulnerability exists due to insufficient validation and trust of untrusted input, affecting the integrity and trustworthiness of the application.

References

▼	URL	Tags
	https://github.com/linuxserver/Heimdall
	https://medium.com/@juanfelipeoz.rar/cve-2025-50578-exploiting-host-header-injection-open-redirect-in-heimdall-application-733afceff2ea
	https://github.com/linuxserver/Heimdall/issues/1451

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

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              "confidentialityImpact": "HIGH",
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              "privilegesRequired": "NONE",
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              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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          {
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Vulnerability from fkie_nvd