CVE-2025-54305
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn issue was discovered in the Thermo Fisher Torrent Suite Django application 5.18.1. One of the middlewares included in this application, LocalhostAuthMiddleware, authenticates users as ionadmin if the REMOTE_ADDR property in request.META is set to 127.0.0.1, to 127.0.1.1, or to ::1. Any user with local access to the server may bypass authentication.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe LocalhostAuthMiddleware in Thermo Fisher Torrent Suite Django 5.18.1 automatically authenticates any request with REMOTE_ADDR set to localhost addresses (127.0.0.1, 127.0.1.1, or ::1) as the privileged 'ionadmin' user. This allows any user with local server access to bypass authentication entirely by making requests from the localhost interface.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 5.18.1CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify Thermo Fisher Torrent Suite versionCheck the installed Thermo Fisher Torrent Suite Software version on the system. This may be visible in the application interface, system information files, or version metadata. Look for version 5.18.1 specifically.Affected if The installed version is exactly 5.18.1
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Locate Django middleware configurationFind the Django settings configuration file for the Torrent Suite application. This is typically named settings.py and contains a MIDDLEWARE list. Search for 'LocalhostAuthMiddleware' in this configuration.Affected if LocalhostAuthMiddleware is present in the middleware configuration
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Verify middleware implementation existsSearch for the LocalhostAuthMiddleware Python class file in the application source code. Look for files containing 'LocalhostAuthMiddleware' class definition that handles REMOTE_ADDR validation.Affected if The LocalhostAuthMiddleware class is implemented in the codebase
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Confirm localhost interface bindingCheck the application's network configuration to determine if it binds to localhost interfaces (127.0.0.1, 127.0.1.1, or ::1). Review the web server or application server configuration for listening addresses.Affected if The application is configured to accept connections from localhost addresses
The environment is affected if Thermo Fisher Torrent Suite 5.18.1 is running with the LocalhostAuthMiddleware enabled and the application accepts requests from localhost addresses, allowing IP-based authentication bypass to the ionadmin user.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataReplace or disable the LocalhostAuthMiddleware and implement proper authentication that validates credentials rather than trusting source IP addresses. If localhost access is required, implement additional validation layers such as mutual TLS or strong session tokens.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-54305 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-54305 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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