CVE-2021-41324
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 · uneditedDirectory traversal in the Copy, Move, and Delete features in Pydio Cells 2.2.9 allows remote authenticated users to enumerate personal files (or Cells files belonging to any user) via the nodes parameter (for Copy and Move) or via the Path parameter (for Delete).
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 confidenceDirectory traversal vulnerability in Pydio Cells 2.2.9 allows authenticated users to access files outside their intended scope through the Copy, Move, and Delete operations. The nodes and Path parameters accept path traversal sequences (such as ../) enabling unauthorized file access to personal files or files belonging to other users.
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= 2.2.9CVSS 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
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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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Verify Pydio Cells versionAccess the admin dashboard and navigate to the About or System Information section to view the installed version, or run the command `cells --version` if available on the serverAffected if The installed version is exactly 2.2.9
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Confirm user authentication is enabledCheck that the Pydio Cells instance has user authentication enabled and that users can log in to access file operationsAffected if Users can authenticate to the platform and access file management features
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Verify Copy, Move, or Delete operations are accessibleLog in as an authenticated user and confirm that Copy, Move, or Delete operations are available in the file browser or API endpointsAffected if Authenticated users can access Copy, Move, or Delete operations on files or folders
Your environment is affected if you are running Pydio Cells version 2.2.9 and authenticated users can access Copy, Move, or Delete operations.
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.
dbcve · scopedImplement strict input validation and path canonicalization on the nodes and Path parameters to prevent directory traversal sequences. Validate that the resolved path stays within the user's allowed directory scope before executing Copy, Move, or Delete operations.
Latest stable version of Pydio Cells (version 2.2.10 or higher)
- 1. Back up your current Pydio Cells installation and database before upgrading.
- 2. Download the latest stable version of Pydio Cells from the official GitHub releases page (github.com/pydio/cells).
- 3. Follow the official upgrade instructions specific to your deployment method (Docker, binary, or source installation).
- 4. Verify the upgrade was successful by logging in and testing the Copy, Move, and Delete operations.
- 5. Confirm the vulnerability is remediated by attempting a path traversal - it should be blocked.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-41324 — 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-2021-41324 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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