Open Redirect in Linuxserver Docker-heimdall
CVE-2025-50578
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 Heade…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.028 (84.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linuxserver Docker-heimdall — versions 2.6.3-ls307
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Product)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Exploit, Issue Tracking)
Frequently asked questions
- What is CVE-2025-50578?
- CVE-2025-50578 is a critical-severity vulnerability in Linuxserver Docker-heimdall, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2025-07-30.
- How severe is CVE-2025-50578?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-50578 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.